TY  - BOOK
AU  - John Abraham K
AU  - Ramanantha Menon M
TI  - Studies on alternaria blight [Alternaria belianthi (Hansf.) Tubaki and nishihara.] of sunflower (Helianthus annus L.)
U1  - 632 
CY  - Trivandrum
KW  - Plant pathology
ER  -