1.
Agricultural Utilization of Urban and Industrial By-Products Proceedings of a Symposium Spon...
by Karlen, D. L., Wright, R. J...
ISBN: 9780891181231
List Price: $26.00
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Sustainable Agriculture Systems
by Hatfield, J. L., Karlen, D. L.
ISBN: 9781566700498
List Price: $199.95
3.
Agricultural Utilization of Urban and Industrial By-Products
by Karlen, D. L., Wright, R. J...
ISBN: 9780891183242
List Price: $151.00
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Sustainable Agriculture : Formation - Conventional Agriculture
by Hatfield, Jerry L., Karlen,...
ISBN: 9780849301643