APA استشهاد

Alexander, R. (1993). Industrial Marketing/4e (4th ed.). Richard.D.Irwin.

استشهاد بنمط شيكاغو

Alexander, Ralph.S. Industrial Marketing/4e. 4th ed. Delhi: Richard.D.Irwin, 1993.

MLA استشهاد

Alexander, Ralph.S. Industrial Marketing/4e. 4th ed. Richard.D.Irwin, 1993.