APA

Schaefer R., . (2000). Sociology. A Brief Introduction. [Б. м.]: McGraw-Hill.

Chicago

Schaefer R.T, . 2000. Sociology. A Brief Introduction. [Б. м.]: McGraw-Hill.

Harvard

Schaefer R., . (2000). Sociology. A Brief Introduction. [Б. м.]: McGraw-Hill.

MLA

Schaefer R.T, . Sociology. A Brief Introduction. [Б. м.]: McGraw-Hill. 2000.