APA (7th ed.) Citation

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.) Citation

Howard, 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.) Citation

Howard, L. O. Revision of Aphelininae of North America: Subfamily of Hymenopterous Parasites of Family Chalcididae. U.S. Government Printing Office, 1895.