Discussion
1935
AGROVOC关键词
书目信息
其它主题
United states; U.s. extension services; U.s. cooperative extension service
语言
英语
注释
Includes bibliographical references (page 13).
副标题
a brief guide to methods
类型
Bibliography; Book; Monograph; Monograph; Book; Text
团体作者
United States. Department of Agriculture.
2024-02-27
2025-07-19
MODS