Union Catalogue of Belgian Libraries
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Book
Protocol for evaluating the nitrogen status of lake sediments
Author:
Keeney, Dennis R.
Year: 1974
Publisher: Washington (D.C.): Environmental protection agency
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Bugs in the system : redesigning the pesticide industry for sustainable agriculture
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Sustainability of agricultural systems in transition : proceedings of an international symposium ... held at the 90th annual meetings of ASA, CSSA, and SSSA, 20-22 Oct. 1998 in Baltimore, MD
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