APA استشهاد

Armstrong,Gary, Kotler,Philip, & Opresnik,Marc O. (2017). Marketing: An introduction (13th ed.). Pearson.

استشهاد بنمط شيكاغو

Armstrong,Gary, Kotler,Philip, و Opresnik,Marc O. Marketing: An Introduction. 13th ed. Noida: Pearson, 2017.

MLA استشهاد

Armstrong,Gary, et al. Marketing: An Introduction. 13th ed. Pearson, 2017.