| 000 | 00407nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aHayes, H.K. | ||
| 245 | _aExperimental study of convergent improvement and backcrossing in corn | ||
| 260 |
_aMinnesota _bMinnesota Agricultural Experiment Station _c1946 |
||
| 300 | _a40p. | ||
| 440 | _aMinnesota Agricultural Experi | ||
| 901 | _a25476 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c4812 _d4812 |
||