APA Citatie

Armstrong, G., & Philip, K. (2005). Marketing: An introduction (6th ed.). Pearson.

Chicago Style citaat

Armstrong, Gary, en Kotler Philip. Marketing: An Introduction. 6th ed. Delhi: Pearson, 2005.

MLA citatie

Armstrong, Gary, en Kotler Philip. Marketing: An Introduction. 6th ed. Pearson, 2005.