Puchta Claudia Focus group practice - London Sage Publications UK 2004 - ix, 174p. cm. ISBN: 0761966900 (hbk) 750 Standard No.: 279,865 Source: IN1153, 23/01/2014, Selectbook Service Syndicate Textual Subjects--Topical Terms: PSYCHOLOGY Dewey Class. No.: S8, P4