Quantitative data analysis with SPSS for Windows : a guide for social scientists / Alan Bryman and Duncan Cramer. Bryman, Alan. Cramer, Duncan, 1948- SPSS for Windows. Social sciences Statistical methods Computer programs. HA32 .B794 1997 300.2855369 20 BRQ Includes bibliographical references (p. [304]-306) and index. London ; New York : Routledge, 1997. 1997. 1997 Text xviii, 313 p. : http://www.loc.gov/catdir/enhancements/fy0909/96007866-d.html eng