Cita APA (7a ed.)
Engel, J. F., Warshaw, M. R., & Kinnear, T. R. (1991). Promotional strategy: Managing the marketing communications process (7.ed.). IRWIN.
Cita Chicago Style (17a ed.)
Engel, James F., Martin R. Warshaw, y Thomas R. Kinnear. Promotional Strategy: Managing the Marketing Communications Process. 7.ed. Homewood: IRWIN, 1991.
Cita MLA (9a ed.)
Engel, James F., et al. Promotional Strategy: Managing the Marketing Communications Process. 7.ed. IRWIN, 1991.
Precaución: Estas citas no son 100% exactas.