Cita APA (7th ed.)

Butler, E., Hickman, M. A., & Overby, L. (1983). Correct writing (3rd ed.). D.C. Heath and Company.

Cita Chicago (17th ed.)

Butler, Eugenia, Mary Ann Hickman, i Lalla Overby. Correct Writing. 3rd ed. Lexington: D.C. Heath and Company, 1983.

Cita MLA (9th ed.)

Butler, Eugenia, et al. Correct Writing. 3rd ed. D.C. Heath and Company, 1983.