Berkman, Elliot T. A conceptual guide to statistics using SPSS. - Los Angeles : Sage, 2012. - xiii, 296 p. ill. 24 cm. Includes index. ISBN: 9781412974066 LCCN: Subjects--Topical Terms: StatisticsSocial sciences LC Class. No.: HA 32 BC 2012 Dewey Class. No.: