Cita APA

Kotler, P., Opresnik, M. O., & Armstrong, G. (2021). Principles of marketing (18th edition.). Harlow, England: Pearson.

Citación estilo Chicago

Kotler, Philip, Marc O. Opresnik, and Gary Armstrong. Principles of Marketing. 18th edition. Harlow, England: Pearson, 2021.

Cita MLA

Kotler, Philip, Marc O. Opresnik, and Gary Armstrong. Principles of Marketing. 18th edition. Harlow, England: Pearson, 2021.