APA (7th ed.) Citation
Engel, J. F., Warshaw, M. R., & Kinnear, T. R. (1991). Promotional strategy: Managing the marketing communications process (7.ed.). IRWIN.
Chicago Style (17th ed.) Citation
Engel, James F., Martin R. Warshaw, and Thomas R. Kinnear. Promotional Strategy: Managing the Marketing Communications Process. 7.ed. Homewood: IRWIN, 1991.
MLA (9th ed.) Citation
Engel, James F., et al. Promotional Strategy: Managing the Marketing Communications Process. 7.ed. IRWIN, 1991.
Warning: These citations may not always be 100% accurate.