Guide to research in air pollution : projects active in calendar year 1969

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090 ‡aTD881 ‡b.U55 no.47
245 0 0 ‡aGuide to research in air pollution : ‡bprojects active in calendar year 1969 / ‡ccompiled by Center for Air Environment Studies of the Pennsylvania State University.
250 ‡a7th ed.
260 ‡aRaleigh, N.C. : ‡bU.S. Dept. of Health, Education and Welfare, Public Health Service, Environmental Health Service, National Air Pollution Control Administration, ‡c1970.
300 ‡a193 p. ; ‡c28 cm.
490 0 ‡aPublic Health Service publication ; ‡vno. 981
490 0 ‡aNational Air Pollution Control Administration publication ; ‡vno.AP-47
500 ‡aPrepared under contract no. CPA 22-69-37.
538 ‡aMode of access: Internet.
650 0 ‡aAir ‡xPollution ‡xBibliography.
650 0 ‡aAir ‡xPollution ‡xResearch.
710 1 ‡aUnited States. ‡bNational Air Pollution Control Administration.
710 2 ‡aPennsylvania State University. ‡bCenter for Air Environment Studies.
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