Soil survey of Calvert County, Maryland

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049 9 9 ‡aRECLAMATION
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035 ‡a(OCoLC)21005914
245 0 0 ‡aSoil survey of Calvert County, Maryland / ‡cby S.O. Perkins and Merl F. Hershberger.
260 ‡aWashington, D.C. : ‡bU.S. G.P.O., ‡c1931.
300 ‡a22 p. : ‡b2 maps (1 fold.) ; ‡c24 cm.
538 ‡aMode of access: Internet.
650 0 ‡aSoils ‡zMaryland ‡zCalvert County ‡xMaps.
650 0 ‡aSoil surveys ‡zMaryland ‡zCalvert County.
700 1 0 ‡aHershberger, Merl F., ‡d1907-
700 1 0 ‡aPerkins, S. O. ‡q(Samuel Oscar), ‡d1877-
710 2 0 ‡aMaryland Geological Survey.
710 2 0 ‡aMaryland Agricultural Experiment Station.
710 1 0 ‡aUnited States. ‡bBureau of Chemistry and Soils.
CID ‡a101740243
DAT 0 ‡a19920910131610.0 ‡b20161024000000.0
DAT 1 ‡a20161026090804.0 ‡b2023-07-17T17:52:26Z
DAT 2 ‡a2023-07-17T17:30:02Z
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