APA (7th ed.) Citation

Engel, J. F., Talarzyk, W. W., & Larson, C. M. (1971). Cases in promotional strategy. Irwin [u.a.].

Chicago Style (17th ed.) Citation

Engel, James F., W. W. Talarzyk, and Carl M. Larson. Cases in Promotional Strategy. Homewood, Ill: Irwin [u.a.], 1971.

MLA (9th ed.) Citation

Engel, James F., et al. Cases in Promotional Strategy. Irwin [u.a.], 1971.