其他書名 | Principles and Techniques; Brings Together Lectures and Problems which Were Given in a Short Course Held in the U. S. Department of Agriculture Graduate School, from April 5 to June 7, 1935 |
出版 | U.S. Department of Agriculture, Graduate School, 1935 |
URL | http://books.google.com.hk/books?id=S_agAAAAMAAJ&hl=&source=gbs_api |
EBook | FULL_PUBLIC_DOMAIN |