| 000 | 00367 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aDetweler, Samuel B. | |
| 245 | 1 | _aBlack current spreads white-pine blister rust | |
| 260 |
_aWashington _c1928 |
||
| 300 | _a1-45 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aSpread, Pine, Rust United States Department of Agriculture. Miscellaneous Publication No. 27 | ||
| 901 | _aS50086 | ||
| 999 |
_c106914 _d106914 |
||