A study of certain phases of the economics of dairy-cattle feeding
1933
AGROVOC关键词
书目信息
语言
英语
注释
by R.R. Graves ... and J.B. Shepherd ...
类型
Monograph; Book; Text
团体作者
United States. Bureau of Dairy Industry. Division of Dairy Cattle Breeding, Feeding, and Management.
2024-02-27
2025-07-19
MODS