| 000 | 00393nam a2200109 4500 | ||
|---|---|---|---|
| 245 | _aPathogenic specialization in cerealrust fungi especially puccinia recondition f. sp. tritici concepts methods of study a | ||
| 100 | _aU.S. Department of Agriculture | ||
| 260 |
_aWashington _bThe Author _c1971 |
||
| 300 | _aiii,51p.; 23cm.-. | ||
| 490 | _aTachnical bulletin, no. 1432. | ||
| 082 |
_a581.2 _bU.S. |
||
| 999 |
_c24982 _d24982 |
||