Kotler, P., Opresnik, M. O., & Armstrong, G. (2018). Principles of marketing (17e, Global edition.). Pearson Higher Education.
Cita Chicago (17th ed.)Kotler, Philip, Marc Oliver Opresnik, i Gary Armstrong. Principles of Marketing. 17e, Global edition. Harlow, England: Pearson Higher Education, 2018.
Cita MLA (9th ed.)Kotler, Philip, et al. Principles of Marketing. 17e, Global edition. Pearson Higher Education, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.