Παραπομπή APA

Kotler, P. (1989). Marketing Management/6e (6th ed.). P.H.I.

Παραπομπή Chicago Style

Kotler, P. Marketing Management/6e. 6th ed. New Delhi: P.H.I, 1989.

Παραπομπή MLA

Kotler, P. Marketing Management/6e. 6th ed. P.H.I, 1989.