TY - BOOK AU - Vanloon,,Gary W. AU - Hugar,L.B. AU - S.G.. Patil TI - Agricultural Sustainability: : Strategies For Assessment SN - 9780761933403 U1 - 338.1 PY - 2005/// CY - New Delhi: PB - SAGE Publication , KW - Agricultural Sustainability KW - Crop productivity KW - Economics KW - soil quality ER -