Front cover image for Biology of the primary screw worm fly, Cochliomyia americana, and a comparison of its stages with those of C. macellaria

Biology of the primary screw worm fly, Cochliomyia americana, and a comparison of its stages with those of C. macellaria

E. W. Laake, Emory C. Cushing (Author), H. E. Parish, United States Department of Agriculture
Print Book, English, 1936
U.S. Dept. of Agriculture, Washington, 1936