Bennett, P. D., Lamm, R. P., & Fry, R. A. (1988). Marketing. McGraw-Hill.
Chicago Style aipamenaBennett, Peter D., Robert P. Lamm, and Robert A. Fry. Marketing. New York: McGraw-Hill, 1988.
MLA aipamenaBennett, Peter D., et al. Marketing. McGraw-Hill, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.