Screw-worms and other maggots affecting animals
- Source:
- Farmers' bulletin (United States. Department of Agriculture) ; no. 857 1917
- Year:
- 1917
- Subject:
- Screwworm -- Control and Maggots -- Control
- Format:
- 20 p. : ill. ; 23 cm.
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection