| 000 | 00492nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 140208s9999 xx 000 0 und d | ||
| 044 | _aU.S.A. | ||
| 080 | _a581.2 R45I | ||
| 100 | _aRiker, A.J. | ||
| 245 |
_aIntroduction to research on plant diseases : a guide to the principle and practice for studying various plant disease problems _cA.J. Riker and Regina S. Riker |
||
| 260 |
_bJohn S. Swift _aNew York _c1936 |
||
| 300 | _a117 p.; 28cm. | ||
| 700 | _aRiker, Regina S. | ||
| 942 |
_2udc _cGB |
||
| 999 |
_c1538 _d1538 |
||