TY - BK AU - Francis,CH AU - Kaffka,S. AU - Olson,R. ED - Proceedings of a Symposium TI - Exploring the role of diversity in sustainable agriculture SN - 0-89118-128-8 U1 - 333.95 PY - 1995/// CY - Madison, WI (USA) PB - ASA|CSSA|SSSA, KW - Biodiversity KW - AGROVOC KW - Economic environment KW - Natural resources KW - Resource conservation KW - Sustainability ER -