| 其他書名 | Comparing Protein Supplements for Fattening Pigs, and Comparing Corn, Kafir and Darso as a Fattening Feed for Pigs |
| 出版 | Oklahoma Agricultural and Mechanical College, Agricultural Experiment Station, 1917 |
| URL | http://books.google.com.hk/books?id=5YFeAQAACAAJ&hl=&source=gbs_api |