00425nam a2200157Ia 450000500170000002000220001704100120003908200220005110000270007324501100010025000060021026000140021626000200023026000090025036500080025920220325151818.0  a978-81-204-1746-5  aEnglish  a571.92  S1         a"Singh, R S          " 0aPlant Diseases                                                                                             a9  aNew Delhi  b Oxford and IBH  c2017  b650