Lutz Wolfgang Ed. Quantitative adn qualitative methods in psychotherapy research Lutz Wolfgang Ed.; Knox Sarah Ed. - London Routledge 2014 - xxiii;448p. cm. ISBN: 10239 Standard No.: 128129 Source: 1039, 10/12/2015, Bright Book Service Textual Subjects--Topical Terms: App Psychology Dewey Class. No.: S:86:f, Q4