Παραπομπή APA

McCrimmon, J. M. (1963). Writing with a purpose (3rd ed.). Houghton.

Παραπομπή Chicago Style

McCrimmon, James M. Writing with a Purpose. 3rd ed. Boston: Houghton, 1963.

Παραπομπή MLA

McCrimmon, James M. Writing with a Purpose. 3rd ed. Houghton, 1963.