Cita APA (7th ed.)
Zechmeister, E. B. (1994). A practical introduction to research methods in psychology (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Zechmeister, Eugene B. A Practical Introduction to Research Methods in Psychology. 2nd ed. New York: McGraw-Hill, 1994.
Cita MLA (9th ed.)
Zechmeister, Eugene B. A Practical Introduction to Research Methods in Psychology. 2nd ed. McGraw-Hill, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.