Vasey, Daniel E.
An ecological history of agriculture: 10,000 B.C.-A.D. 10,1000 / Daniel E. Vasey
Iowa State University Press, 1992
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Campbell, W. Bruce, editor
Integrating agriculture, conservation and ecotourism: societal influences
[Springer, ], 2012
 eBooks
Briggs, David J.
Agriculture and environment: the physical geography of temperature agriculture systems / David J. Briggs, Frank M. Courtney
Longman Scientific & Technical, 1994
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Altieri, Miguel A., author
Agroecology: the scientific basis of alternative agriculture
Westview Press, 1987
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Agroecology : researching the ecological basis for sustainable agriculture
editor, Stephen R. Gliessman
Springer-Verlag, 1990
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