Cita APA (7a ed.)
Shaughnessy, J. J., & Zechmeister, E. B. (1990). Research methods in psychology (2.ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Shaughnessy, John J., y Eugene B. Zechmeister. Research Methods in Psychology. 2.ed. New York: McGraw-Hill, 1990.
Cita MLA (9a ed.)
Shaughnessy, John J., y Eugene B. Zechmeister. Research Methods in Psychology. 2.ed. McGraw-Hill, 1990.
Precaución: Estas citas no son 100% exactas.