TY  - BOOK
AU  - Auld, B. A.
AU  - Menz, K. M.
AU  - Tisdell, Clement Allan.
TI  - Weed control economics
T2  - Applied botany and crop science
U1  - 632.58 
PY  - 1987///
CY  - London
PB  - Academic Press
KW  - Malas hierbas
KW  - Control
N1  - D50-126
ER  -