000 00304nam a2200121Ia 4500
100 _aSingh, R. S.
_91582
250 _a3rd
942 _cGBK
245 _aIntroduction to principles of plant pathology
260 _aNew Delhi
_bOxford & ibh publishing co. Delhi
_c1988
082 _a632
300 _a534
999 _c386260
_d442724