| 000 | 00414 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aChilds, Leroy, Branch, River Hood | |
| 245 | 1 | _aRelation of woolly apple aphis to perennial canker infection with other notes on the disease | |
| 260 |
_aCorvallis _c1929 |
||
| 300 | _a1-31 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aApple, Disease Oregon Agricultural Experiment Station. Station Bulletin No. 243 | ||
| 901 | _aS47614 | ||
| 999 |
_c103566 _d103566 |
||