Cita APA (7a ed.)

Zechmeister, E. B. (1997). A practical introduction to research methods in psychology (3rd. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Zechmeister, Eugene B. A Practical Introduction to Research Methods in Psychology. 3rd. ed. New York: McGraw-Hill, 1997.

Cita MLA (9a ed.)

Zechmeister, Eugene B. A Practical Introduction to Research Methods in Psychology. 3rd. ed. McGraw-Hill, 1997.