APA
Schaefer R. T., . (2009). Student Study Guide for use with Sociology 12/e. : McGraw-Hill Humanities/Social Sciences/Languages.
Chicago
Schaefer Richard T, . 2009. Student Study Guide for use with Sociology 12/e. : McGraw-Hill Humanities/Social Sciences/Languages.
Harvard
Schaefer R. T., . (2009). Student Study Guide for use with Sociology 12/e. : McGraw-Hill Humanities/Social Sciences/Languages.
MLA
Schaefer Richard T, . Student Study Guide for use with Sociology 12/e. : McGraw-Hill Humanities/Social Sciences/Languages. 2009.