APA (7th ed.) Citation

Irwin, Engel, J., Kinnear, T., & Warshaw, M. (1994). Promotional strategy: Managing the marketing communications process (8th.). Irwin.

Chicago Style (17th ed.) Citation

Irwin, J. Engel, T. Kinnear, and M. Warshaw. Promotional Strategy: Managing the Marketing Communications Process. 8th. Chicago: Irwin, 1994.

MLA (8th ed.) Citation

Irwin, et al. Promotional Strategy: Managing the Marketing Communications Process. 8th. Irwin, 1994.