00290nam a2200109Ia 450000500170000000800410001708200120005810000170007024500390008726000460012630000080017220260224040834.0260224s9999||||xx |||||||||||||| ||und||  a632 CHA  aChaube, H.S  0aCrop diseases and their management  aNew Delhi: Prentice-Hall of India, c2005  a703