Παραπομπή APA

Hayes, A. F. Introduction to mediation, moderation, and conditional process analysis. New York London.

Παραπομπή Chicago Style

Hayes, Andrew F. Introduction to Mediation, Moderation, and Conditional Process Analysis. New York London.

Παραπομπή MLA

Hayes, Andrew F. Introduction to Mediation, Moderation, and Conditional Process Analysis. New York London.