TY - BOOK AU - KNUTSON, Lloyd AU - STONER, Allan K TI - Biotic diversity and germplasm preservation global imperatives T2 - Beltsville symposia in agricultural research; 13 U1 - 575.22 PY - 1989/// CY - Dordrecht PB - Kluwer KW - Biotic diversity KW - Germplasm collection KW - Germplasm preservation ER -