TY - BOOK AU - Brush,Stephen B. TI - Genes in the field: on-farm conservation of crop diversity SN - 0889368848 U1 - 631.523 23 PY - 2000/// CY - New York PB - Lewis Publishers KW - Crops KW - Germplasm resources KW - Germplasm resources, Plant KW - Germplasm resources conservation N1 - Includes bibliographical references and Index ER -