Howard, L. O. (1895). Revision of Aphelininae of North America: Subfamily of hymenopterous parasites of family Chalcididae. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationHoward, L. O. Revision of Aphelininae of North America: Subfamily of Hymenopterous Parasites of Family Chalcididae. [Washington, D.C.]: U.S. Government Printing Office, 1895.
MLA (9th ed.) CitationHoward, L. O. Revision of Aphelininae of North America: Subfamily of Hymenopterous Parasites of Family Chalcididae. U.S. Government Printing Office, 1895.
Warning: These citations may not always be 100% accurate.