APA (7th ed.) Citation

Hawkins, N. A. (1920). The selling process (7th ed.). N.A. Hawkins.

Chicago Style (17th ed.) Citation

Hawkins, Norval Abiel. The Selling Process. 7th ed. Detroit, Mich: N.A. Hawkins, 1920.

MLA (9th ed.) Citation

Hawkins, Norval Abiel. The Selling Process. 7th ed. N.A. Hawkins, 1920.