TY  - BOOK
AU  - Wildermuth, V. L.
AU  - Walter, E. V.
ED  - EUA. Department of Agriculture
TI  - Biology and control of the corn leaf aphid with special reference to the southwestern states
U1  - PA-C 632 B85 
CY  - Washington
PB  -  USDA
KW  - Afididos
KW  - Aphis maidis
KW  - Fitopatología
KW  -  colecciones de escritos
KW  - Maíz
KW  -  plagas
N1  - Enc. con impresos similares
ER  -