| 000 | 00330nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 160316s1972 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 100 | _aEarl O Heady | ||
| 245 | _aAgricultural Production Economics | ||
| 250 | _a1 | ||
| 260 |
_aAMES _bIOWA STATE UNIVERSITY PRESS _c1972 |
||
| 300 | _a667 | ||
| 700 |
_a John L Dillon _a |
||
| 999 |
_c6172 _d6172 |
||