Parasites of the hessian fly in the North Central States
By: by C.C. Hill
Series: Circular / United States Department of Agriculture -- no. 923; Circular (United States. Dept. of Agriculture) -- no. 923.
Publisher: U.S. Dept. of Agriculture
Published: 1953
Place of publication: Washington, D.C
Language: eng
Number of pages: 15
Subjects: Hessian flies; Parasites
Notes: Caption title.

Bibliography: p. 15.