TY  - BOOK
AU  - Ray, Sukumar
TI  - Certain physiological and toxicological studies on the potato cutworm agrotis ypsilon rottenburg : a submitted to the faculty of the post graduate school, Indian agricultural research institute New Delhi in, patial fulfilment of the requirements for the degree of Docter of philosophy Entomology New Delhi 1971
PY  - 1971///
CY  - New Delhi
PB  - Indian Agricultural Research Institute
ER  -