Cita APA (7th ed.)
Engel, J. F., Blackwell, R. D., & Kollat, D. T. (1978). Consumer behavior (3d ed.). Dryden Press.
Cita Chicago (17th ed.)
Engel, James F., Roger D. Blackwell, i David T. Kollat. Consumer Behavior. 3d ed. Hinsdale, Ill.: Dryden Press, 1978.
Cita MLA (9th ed.)
Engel, James F., et al. Consumer Behavior. 3d ed. Dryden Press, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.