IBM SPSS for Introductory StatisticsMorgan, George A., Karen C. Barrett, Nancy L. Leech, Gene W. Gloeckner · First published 2006Open the Tome
SPSS for introductory statisticsMorgan, George A., George A. Morgan, Nancy L. Leech, Gene W. Gloeckner, Karen C. Barrett · First published 2004Open the Tome
SPSS for intermediate statisticsNancy L. Leech, Karen C. Barrett, George A. Morgan · First published 2004Open the Tome
