Biological control of insect pests in the continental United States
By: by C.P. Clausen.
Series: Technical bulletin / United States Department of Agriculture ;; no. 1139; Technical bulletin (United States. Dept. of Agriculture) ;; no. 1139.
Publisher: U.S. Dept. of Agriculture
Published: 1956
Place of publication: Washington
Language: eng
Number of pages: 151
Subjects: Insect pests -- Biological control -- United States.
Notes: Literature cited: p. 135-143.
Includes index.