TY  - BOOK
AU  - Gupta, O.P
TI  - Scientific weed management: In the tropics and sub-tropics 
AV  - SB613 .T7G9 1984
PY  - 1984///
CY  - New Delhi
PB  - Today and Tomorrow's  Printers & Publishers
KW  - weed management
N1  - Includes index and appendices
ER  -