APA (7th ed.) Citation

Howard, L. O. (1895). Revision of the Aphelininæ of North America: A subfamily of hymenopterous parasites of the family Chalcididæ. G.P.O..

Chicago Style (17th ed.) Citation

Howard, L. O. Revision of the Aphelininæ of North America: A Subfamily of Hymenopterous Parasites of the Family Chalcididæ. Washington: G.P.O., 1895.

MLA (8th ed.) Citation

Howard, L. O. Revision of the Aphelininæ of North America: A Subfamily of Hymenopterous Parasites of the Family Chalcididæ. G.P.O., 1895.