TY  - BOOK
AU  - Chattopadhyay, S.B.
TI  - Principles and procedures of plant protection
U1  - 632.9 21st ed.
PY  - 1980///
CY  - New Delhi
PB  - Oxford and IBH Publication Co.
KW  - Plant protection
N1  - Index: pp 541-47
ER  -