Screwworm control
Dove, Walter E., 1894-
Screwworm control [By W.E. Dove ... - Washington, U.S. Govt. print. off., 1938] - 1 p. l., 6 p. illus. 23 cm. - U.S. Dept. of agriculture. Leaflet no. 162 . - Leaflet (United States. Department of Agriculture) ; no. 162. .
Contribution from Bureau of entomology and plant quarantine.
agr38000461
SB593.S4 / D6
Screwworm control [By W.E. Dove ... - Washington, U.S. Govt. print. off., 1938] - 1 p. l., 6 p. illus. 23 cm. - U.S. Dept. of agriculture. Leaflet no. 162 . - Leaflet (United States. Department of Agriculture) ; no. 162. .
Contribution from Bureau of entomology and plant quarantine.
agr38000461
SB593.S4 / D6