著者名 書名 版表示 出版者名 出版年 シリーズ名 番号 ISBN ISSN URL Knutson, Lloyd V. and Stoner, Allan K. and Beltsville Agricultural Research Center and Friends of Agricultural Research Beltsville, Inc. Biotic diversity and germplasm preservation, global imperatives : invited papers presented at a symposium held May 9-11, 1988, at the Beltsville Agricultural Research Center, Beltsville, Maryland Kluwer Academic Publishers 1989 Beltsville symposia in agricultural research 13 0792301781 https://ci.nii.ac.jp/ncid/BA10278390