TY  - BOOK
AU  - Weber, Gustavus A.
TI  - The plant quarantine and control adminstration: its history, activities and organization  
U1  - PA 632.93 W4 
CY  - Washington
PB  -  The brookings institution
KW  - Entomología económica
KW  - Plantas
KW  -  cuarentena
ER  -