| 000 | 00425 a2200157 4500 | ||
|---|---|---|---|
| 080 |
_a631.95 _bA 512 P |
||
| 245 | 1 |
_aAmerican Institute of Crop Ecology, study series _bNo. 29A : _cby M.Y. Nuttonson |
|
| 260 |
_aWashington _c1963 |
||
| 650 | _aAgricultural Ecology | ||
| 650 | _aCrop Ecology | ||
| 650 | _aPhysical Environment | ||
| 650 | _aAgriculture | ||
| 100 | 1 |
_aNuttonson, M.Y. _d |
|
| 300 | _a137 p. | ||
| 901 | _a74300 | ||
| 999 |
_c45664 _d45664 |
||