TY  - BOOK
AU  - Rao, Vallurupalli Sivaji.
TI  - Principles of weed science
SN  - 157808069X
U1  - 632.58 
PY  - 2000///
CY  - Santa Clara, California
PB  - Science Publishers, Inc.
KW  - Herbicidas
KW  - Malas hierbas
KW  - Control
ER  -