APA استشهاد

Ernest, J. W. (1971). Creative selling. Gregg division Mac grow hill.

استشهاد بنمط شيكاغو

Ernest, John W. Creative Selling. New York: Gregg division Mac grow hill, 1971.

MLA استشهاد

Ernest, John W. Creative Selling. Gregg division Mac grow hill, 1971.