APA

Gilbert M. B., . (1983). Clear writing, a business guide. New York: Wiley.

Chicago

Gilbert Marilyn B, . 1983. Clear writing, a business guide. New York: Wiley.

Harvard

Gilbert M. B., . (1983). Clear writing, a business guide. New York: Wiley.

MLA

Gilbert Marilyn B, . Clear writing, a business guide. New York: Wiley. 1983.