Plant Protection Bulletin. v.40-41, 1988-89
Pawar, A.D., ed.
Plant Protection Bulletin. v.40-41, 1988-89 edited by A.D. Pawar - Delhi Directorate of Plant Protection 1988 - v.40-41, 50 p.; 24cm.
Plant Protection Bulletin. v.40-41, 1988-89 edited by A.D. Pawar - Delhi Directorate of Plant Protection 1988 - v.40-41, 50 p.; 24cm.