TY  - BOOK
AU  - Walker, J. O.
TI  - Spraying systems for the 1980s: : proceedings of a symposiu,m
T2  - Monograph
U1  - 632.94 
PY  - 1980///
CY  - Croydon
PB  - British Crop Protection Council
KW  - Aspersores
KW  - Pesticidas
KW  - Aplicación
ER  -