| 其他書名 | Relation between monetary profit and energetic efficiency of milk production with special reference to the influence of live weight thereon. XXXIX |
| 出版 | University of Missouri, College of Agriculture, Agricultural Experiment Station, 1936 |
| URL | http://books.google.com.hk/books?id=DMymKZXNx38C&hl=&source=gbs_api |