TY  - BOOK
ED  - United States.
ED  - United States.
TI  - Facts about the screwworm barrier program
AV  - S21 .A85735 no. 64
PY  - 1967///
CY  - [Washington]
PB  - U.S. Agricultural Research Service
KW  - Screwworm
KW  - Control
KW  - Cochliomyia hominivorax
KW  - Domestic animals
KW  - Pests
N1  - Supersedes U.S. Agricultural Research Service. Facts about screwworm eradication, issued as ARS 91-39
ER  -