Ineffectiveness of internal medication of poultry for the control of external parasites
- Source:
- Technical bulletin / United States Department of Agriculture 1928
- Year:
- 1928
- Subject:
- Poultry -- Parasites -- Control
- Format:
- 24 p. : ill. ; 23 cm.
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection