<?xml version="1.0" encoding="UTF-8"?><collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.loc.gov/MARC21/slim" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd"><record><leader>02136cam a2200481Ii 4500</leader><controlfield tag="001">102892750</controlfield><controlfield tag="003">MiAaHDL</controlfield><controlfield tag="005">20250726000000.0</controlfield><controlfield tag="006">m        d        </controlfield><controlfield tag="007">cr bn ---auaua</controlfield><controlfield tag="008">771011s1977    okua     bt  f000 0 eng d</controlfield><datafield tag="019" ind1=" " ind2=" "><subfield code="a">1225655761</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(MiU)99187625998706381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">sdr-miu.99187625998706381</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)721068473</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(GWLA)gwla ocn721068473</subfield></datafield><datafield tag="037" ind1=" " ind2=" "><subfield code="b">22161</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">PBU</subfield><subfield code="b">eng</subfield><subfield code="e">rda</subfield><subfield code="c">PBU</subfield><subfield code="d">OCLCF</subfield><subfield code="d">OCLCO</subfield><subfield code="d">OCLCQ</subfield><subfield code="d">CSO</subfield><subfield code="d">OCLCA</subfield><subfield code="d">AGL</subfield><subfield code="d">OCLCO</subfield><subfield code="d">TRAAL</subfield></datafield><datafield tag="043" ind1=" " ind2=" "><subfield code="a">n-us-tx</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">MAIN</subfield></datafield><datafield tag="050" ind1=" " ind2="4"><subfield code="a">TD170.93 .R4 no. 77-158</subfield></datafield><datafield tag="074" ind1=" " ind2=" "><subfield code="a">431-I-12</subfield></datafield><datafield tag="086" ind1="0" ind2=" "><subfield code="a">EP 1.23/2:600/2-77-158</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Swoboda, Allen R.,</subfield><subfield code="e">author.</subfield></datafield><datafield tag="245" ind1="1" ind2="4"><subfield code="a">The control of nitrate as a water pollutant /</subfield><subfield code="c">Allen R. Swoboda.</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Ada, Oklahoma :</subfield><subfield code="b">Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, Source Management Branch,</subfield><subfield code="c">1977.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">x, 141 pages :</subfield><subfield code="b">illustrations, figures, graphs, tables ;</subfield><subfield code="c">28 cm.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">unmediated</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">volume</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Environmental protection technology series ;</subfield><subfield code="v">EPA-600/2-77-158</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"August 1977."</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"Includes appendices."</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"Chiefly tables."</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">"Prepared by Texas A &amp; M University, Texas Agricultural Experiment Station, College Station, Tex., under project S-800193."</subfield></datafield><datafield tag="504" ind1=" " ind2=" "><subfield code="a">Includes bibliographical references (pages 111-112).</subfield></datafield><datafield tag="538" ind1=" " ind2=" "><subfield code="a">Mode of access: Internet.</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Organic water pollutants.</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Soils</subfield><subfield code="x">Leaching</subfield><subfield code="z">Texas.</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Nitrates.</subfield></datafield><datafield tag="710" ind1="1" ind2=" "><subfield code="a">United States.</subfield><subfield code="b">Environmental Protection Agency.</subfield><subfield code="b">Office of Research and Development,</subfield><subfield code="e">sponsor.</subfield></datafield><datafield tag="710" ind1="2" ind2=" "><subfield code="a">Texas Agricultural Experiment Station,</subfield><subfield code="e">sponsor.</subfield></datafield><datafield tag="710" ind1="2" ind2=" "><subfield code="a">Robert S. 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