Hayes Andrew F Introduction to mediation, moderation and conditional process analysis - New York Guilford Press USA 2013 - xvii,506p. cm. - Methodology in the social sciences . ISBN: 9781609182304 (hbk) 3989.69 Standard No.: 11198 Source: 11430, 13/03/2014, Elite Publishers Distributors Textual Subjects--Topical Terms: SOCIAL SCIENCES Dewey Class. No.: Sigma:(B2.8), Q3