George, D. &. M. (2006). SPSS for Windows step by step: A simple guide and reference. Dorling Kindersley.
Chicago Edition CitationGeorge, Darren &. Mallery. SPSS for Windows Step by Step: A Simple Guide and Reference. Delhi: Dorling Kindersley, 2006.
MLA Edition CitationGeorge, Darren &. Mallery. SPSS for Windows Step by Step: A Simple Guide and Reference. Dorling Kindersley, 2006.
Warning: These citations may not always be 100% accurate.