| 000 | 00443nam a2200181 4500 | ||
|---|---|---|---|
| 020 |
_a _c |
||
| 082 | _a338.1 YAN-M | ||
| 100 | _aYang, W Y | ||
| 245 | _aMethods of farm mangement investigations for improving farm productivity | ||
| 250 | _a | ||
| 260 |
_aFood & agriculture organizations of the United States _c1958 |
||
| 300 | _a | ||
| 490 | _a | ||
| 500 | _a | ||
| 590 |
_a _b _c |
||
| 650 | _aAgricultural economics | ||
| 942 | _cBK | ||
| 999 |
_c307694 _d307694 |
||