00310nam a2200109Ia 450000500170000000800410001708200140005810000190007224500520009126000490014330000080019220260224040821.0260224s9999||||xx |||||||||||||| ||und||  a581.2 MAH  aMahadevan, A.  0aBiochemical aspects of plant disease resistance  aNew Delhi: Today & Tomorrows Printers c1982  a400