United States. Bureau of Entomology & Comstock, J. H. (1879). Report upon cotton insects, prepared under direction of Commissioner of Agriculture in pursuance of Act of Congress approved June 19, 1878. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and John Henry Comstock. Report upon Cotton Insects, Prepared Under Direction of Commissioner of Agriculture in Pursuance of Act of Congress Approved June 19, 1878. [Washington, D.C.]: U.S. Government Printing Office, 1879.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and John Henry Comstock. Report upon Cotton Insects, Prepared Under Direction of Commissioner of Agriculture in Pursuance of Act of Congress Approved June 19, 1878. U.S. Government Printing Office, 1879.