| 000 | 00442 a2200181 4500 | ||
|---|---|---|---|
| 080 |
_a631.95 _bA 512 R |
||
| 245 | 1 |
_aAmerican Institute of Crop Ecology series, study _bNo. 20 : |
|
| 260 |
_aWashington _c1958 |
||
| 650 | _aAgricultural Ecology | ||
| 650 | _aCrop Ecology | ||
| 650 | _aRye-Climate | ||
| 650 | _aPhenology | ||
| 650 | _aPhoto-Thermal Requirements | ||
| 650 | _aRye | ||
| 100 |
_a _d |
||
| 300 | _a219 p. | ||
| 901 | _a60597 | ||
| 999 |
_c45655 _d45655 |
||