00391nam a2200121Ia 450000500170000010000200001724500750003726000090011252001060012158300190022794200060024699900170025220260716043331.0  aALVAREZ, Nelson  aMatter of survival : how agricultural bio-diversity can be maintained.  c1995  aPresents a critical analysis of the role of farmers and bio-technology when preserving bio-diversity.  c3/7/00kM2LMGR  cA  c45077d45077