Biology of the primary screw worm fly, Cochliomyia americana, and a comparison of its stages with those of C. macellaria
By: by E.W. Laake, Emory C. Cushing, and H.E. Parish.
Contributors: Cushing, Emory C. 1897-; Parish, H. E. 1903-; United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 500; Technical bulletin (United States. Dept. of Agriculture) -- no. 500.
Publisher: U.S. Dept. of Agriculture
Published: 1936
Place of publication: Washington
Language: eng
Number of pages: 24
Subjects: Screwworm.
Notes: Caption title.