APA (7th ed.) Zitazioa

McCrimmon, J. M. (1973). Writing with purpose. Houghton.

Chicago Style (17th ed.) Zitazioa

McCrimmon, James M. Writing with Purpose. Boston: Houghton, 1973.

MLA (9th ed.) Zitazioa

McCrimmon, James M. Writing with Purpose. Houghton, 1973.