Adventures in social research :
Babbie, Earl R.
Adventures in social research : data analysis using SPSS 14.0 and 15.0 for Windows / Earl Babbie, Fred Halley, Jeanne Zaino. - 6th ed. - Thousand Oaks : Pine Forge Press, an Imprint of Sage Publications, c2007. - xxvii, 433 p. : ill. ; 28 cm. + 1 CD-ROM (4 3/4 in.)