Experience with Human Factors in Agricultural Areas of the World /
| 格式: | 图书 |
|---|---|
| 语言: | English Spanish |
| 出版: |
Washington, D.C. :
Extension Service, U.S. Department of Agriculture, .
1949.
|
| 主题: |
Biblioteca de Investigación Juan de Córdova
| 索引号: |
F RC965 Ex71 1949 |
|---|---|
| 复印件 Fundación Alfredo Harp Helú Oaxaca | Fundación Alfredo Harp Helú Oaxaca |