Cita APA (7a ed.)

Giddens, A., & Birdsall, K. (2001). Sociology (4th ed.). Polity.

Cita Chicago Style (17a ed.)

Giddens, Anthony, y Karen Birdsall. Sociology. 4th ed. Cambridge: Polity, 2001.

Cita MLA (9a ed.)

Giddens, Anthony, y Karen Birdsall. Sociology. 4th ed. Polity, 2001.