Cita APA (7a ed.)

Gavin, H. (2008). Understanding research methods and statistics in psychology. SAGE.

Cita Chicago Style (17a ed.)

Gavin, Helen. Understanding Research Methods and Statistics in Psychology. Thousand Oaks, CA: SAGE, 2008.

Cita MLA (8a ed.)

Gavin, Helen. Understanding Research Methods and Statistics in Psychology. SAGE, 2008.