| 其他書名 | A Table that Lists All Items of Expense, Income, and Profit Or Loss Per Year of Any Cow, If Her Production is Known |
| 出版 | University of Illinois Agricultural Experiment Station, 1909 |
| URL | http://books.google.com.hk/books?id=OqNOAQAAMAAJ&hl=&source=gbs_api |