其他書名 | Talk by Dr. Byron T. Shaw, Deputy Administrator, Agricultural Research Administration, U.S. Department of Agriculture, Before Meeting of American Agricultural Editors Association, at Beltsville, Md., September 11, 1951 |
出版 | U.S. Department of Agriculture, Agricultural Research Service, 1951 |
URL | http://books.google.com.hk/books?id=JYNKtwAACAAJ&hl=&source=gbs_api |