TY  - BOOK
AU  - Hartman, Henry
AU  - Robinson, R. H. 
AU  - Zeller, S. M.
TI  - The removal of spray residue from apples and pears
CY  - Corvallis
PB  -  Oregon State Agricultural College
KW  - Pesticidas
KW  -  Resíduos  Manzana  Pera
ER  -