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- catalog contributor b12640008.
- catalog contributor b12640009.
- catalog created "1951.".
- catalog date "1951".
- catalog date "1951.".
- catalog dateCopyrighted "1951.".
- catalog description "Includes bibliographical references.".
- catalog extent "p. 366-414 :".
- catalog isPartOf "Research bulletin (Iowa Agricultural Experiment Station) ; 382.".
- catalog isPartOf "Research bulletin ; 382".
- catalog issued "1951".
- catalog issued "1951.".
- catalog language "eng".
- catalog publisher "Ames, Iowa : Agricultural Experiment Station, Iowa State College,".
- catalog subject "Soil conservation Economic aspects.".
- catalog title "Principles of conservation : economics and policy / by Earl O. Heady and O.J. Scoville.".
- catalog type "text".