APA-referens (7:e uppl.)

Butler, E., Everett, E. M., Hickman, M. A., & Overby, L. (1976). Correct Writing (2nd ed.). D.C. Heath and Company.

Chicago-referens (17:e uppl.)

Butler, Eugenia, Edwin Marrard Everett, Mary Ann Hickman, och Lalla Overby. Correct Writing. 2nd ed. Lexingon, MA: D.C. Heath and Company, 1976.

MLA-referens (9:e uppl.)

Butler, Eugenia, et al. Correct Writing. 2nd ed. D.C. Heath and Company, 1976.