| 000 | 00351 a2200133 4500 | ||
|---|---|---|---|
| 080 |
_a631.95 _bA 512 A |
||
| 245 | 1 |
_aAmerican Institute of Crop Ecology series _bNo. 21 : _cby M.Y. Nuttonson |
|
| 260 |
_aWashington _c1959 |
||
| 650 | _aAgricultural Ecology | ||
| 650 | _aCrop Ecology | ||
| 100 | 1 |
_aNuttonson, M.Y. _d |
|
| 300 | _a60 p. | ||
| 901 | _a72851 | ||
| 999 |
_c45656 _d45656 |
||