| 000 | 00341nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aGilbert, C.W. | ||
| 245 | _aEconomic study of tractors on New York farms | ||
| 260 |
_aIthaca _c1930 |
||
| 300 | _a1-80 p. | ||
| 440 | _aCornell Agricultural Experime | ||
| 901 | _a19304 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c2745 _d2745 |
||