The apple maggot
- Source:
- Technical bulletin (United States. Dept. of Agriculture) ; no. 66 1928
- Year:
- 1928
- Subject:
- Apple maggot and Apples -- Diseases and pests
- Format:
- 48 p., 2 p. of plates : ill. ; 23 cm.
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection