Breakwell, G. M., Smith, J. A., & Wright, D. B. (2012). Research methods in psychology (4th ed.). Sage.
Cita Chicago Style (17a ed.)Breakwell, Glynis M., Jonathan A. Smith, y Daniel B. Wright. Research Methods in Psychology. 4th ed. Los Angeles: Sage, 2012.
Cita MLA (9a ed.)Breakwell, Glynis M., et al. Research Methods in Psychology. 4th ed. Sage, 2012.
Precaución: Estas citas no son 100% exactas.