其他書名 | Screening Cabbage Seed Beds, Experiments in Beef Production, Spraying Apple Orchards, Preparation of Choice Hams, New Type of Spray Nozzle, Factors Affecting Fat in Cream, Preparation of Corn for Hogs |
出版 | U.S. Department of Agriculture, 1912 |
URL | http://books.google.com.hk/books?id=K346AQAAMAAJ&hl=&source=gbs_api |
EBook | FULL_PUBLIC_DOMAIN |