APA (7th ed.) Zitazioa
Butler, E., Everett, E. M., Hickman, M. A., & Overby, L. (1976). Correct Writing (2nd ed.). D.C. Heath and Company.
Chicago Style (17th ed.) Zitazioa
Butler, Eugenia, Edwin Marrard Everett, Mary Ann Hickman, eta Lalla Overby. Correct Writing. 2nd ed. Lexingon, MA: D.C. Heath and Company, 1976.
MLA (9th ed.) Zitazioa
Butler, Eugenia, et al. Correct Writing. 2nd ed. D.C. Heath and Company, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.