George, D. (2008). SPPS for windows step by step: A simple guide and reference 15.0 update (8th ed.). Boston, MA: Pearson Education, Inc..
Chicago Style CitationGeorge, Darren. SPPS for Windows Step By Step: A Simple Guide and Reference 15.0 Update. 8th ed. Boston, MA: Pearson Education, Inc., 2008.
MLA CitationGeorge, Darren. SPPS for Windows Step By Step: A Simple Guide and Reference 15.0 Update. 8th ed. Boston, MA: Pearson Education, Inc., 2008.
Warning: These citations may not always be 100% accurate.