APA (7th ed.) Citation

Engel, J. F., Kinnear, T. C., & Warshaw, M. R. (1989). Promotional strategy: Managing the marketing communications process (6th ed.). R.D. Irwin.

Chicago Style (17th ed.) Citation

Engel, James F., Thomas C. Kinnear, and Martin R. Warshaw. Promotional Strategy: Managing the Marketing Communications Process. 6th ed. Homewood, Ill: R.D. Irwin, 1989.

MLA (9th ed.) Citation

Engel, James F., et al. Promotional Strategy: Managing the Marketing Communications Process. 6th ed. R.D. Irwin, 1989.