TY  - BOOK
ED  - United States.
ED  - United States.
TI  - Grasshopper control
T2  - United States. Dept. of Agriculture. Farmers' bulletin
AV  - S21 .A6 rev. no. 2193
PY  - 1967///]
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Grasshoppers
KW  - Control
KW  - United States
KW  - Grasshopper control
ER  -