Παραπομπή APA

Gilbert, M. B. (1972). Clear writing. John Wiley & Sons, Inc.

Παραπομπή Chicago Style

Gilbert, Marilyn B. Clear Writing. New York: John Wiley & Sons, Inc, 1972.

Παραπομπή MLA

Gilbert, Marilyn B. Clear Writing. John Wiley & Sons, Inc, 1972.