TY  - GEN
AU  - Gupta, O.P.
AU  - Lamba, P.S.
TI  - Modern weed science : in the tropics and sub-tropics
U1  - 632.58 GUP 
CY  - New Delhi, Today and tomorrow's printers & publishers
KW  - Weeds/ weed science - tropics/ weeds - sub tropics
ER  -