Cita APA

Schaefer, R. T., & Lamm, R. P. Sociology (5.). McGraw-Hill.

Chicago Edition Citation

Schaefer, Richard T., i Robert P. Lamm. Sociology. 5. 1995: McGraw-Hill.

Cita MLA

Schaefer, Richard T., i Robert P. Lamm. Sociology. 5. McGraw-Hill.