Hairston, M. C. (1981). Successful writing (4th ed.). Norton.
Chicago-viite (17. p.)Hairston, Maxine C. Successful Writing. 4th ed. New York: Norton, 1981.
MLA-viite (9. p.)Hairston, Maxine C. Successful Writing. 4th ed. Norton, 1981.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.