Hiebing, R. G., & Cooper, S. W. (1997). The successful marketing plan: A disciplined and comprehensive approach (2nd ed.). NTC Business Books.
Lua i Stíl Chicago (17ú heag.)Hiebing, Roman G., agus Scott W. Cooper. The Successful Marketing Plan: A Disciplined and Comprehensive Approach. 2nd ed. Lincolnwood, Ill: NTC Business Books, 1997.
Lua MLA (9ú heag.)Hiebing, Roman G., agus Scott W. Cooper. The Successful Marketing Plan: A Disciplined and Comprehensive Approach. 2nd ed. NTC Business Books, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.