George, Darren. IBM SPSS Statistics 26 step by step : a simple guide and reference / by Darren George and Paul Mallery. - 16th ed. - New York : Routledge, c2020. - xiii, 386 p. : ill ; 28 cm. Includes Index. ISBN: 9780367174354 9781138491045 9781138491076 Subjects--Topical Terms: SPSS (Computer file).Sciences sociales Méthodes statistiques Logiciels. Dewey Class. No.: 005.55 / GEI