APA (7th ed.) Citation

Kobs, J. (1992). Profitable direct marketing (2. ed.). NTC Business Books.

Chicago Style (17th ed.) Citation

Kobs, Jim. Profitable Direct Marketing. 2. ed. Lincolnwood, Ill: NTC Business Books, 1992.

MLA (9th ed.) Citation

Kobs, Jim. Profitable Direct Marketing. 2. ed. NTC Business Books, 1992.