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The apple maggot


Author:
Porter, B. A.
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