| 其他書名 | The History of Polled Herefords, America's First Beef Breed |
| 出版 | American Polled Hereford Association by the Lowell Press, 1975 |
| 主題 | Technology & Engineering / Agriculture / Animal Husbandry |
| ISBN | 09135042549780913504253 |
| URL | http://books.google.com.hk/books?id=aNoqAQAAMAAJ&hl=&source=gbs_api |