Cita APA (7th ed.)

Spatz, C., & Kardas, E. P. (2008). Research methods in psychology: Ideas, techniques, and reports. McGraw-Hill Higher Education.

Cita Chicago (17th ed.)

Spatz, Chris, i Edward P. Kardas. Research Methods in Psychology: Ideas, Techniques, and Reports. Boston: McGraw-Hill Higher Education, 2008.

Cita MLA (9th ed.)

Spatz, Chris, i Edward P. Kardas. Research Methods in Psychology: Ideas, Techniques, and Reports. McGraw-Hill Higher Education, 2008.