Cita APA (7th ed.)

Hughes, M., & Kroehler,Carolyn J. (2005). Sociology: The core (7th ed.). McGraw - Hill.

Cita Chicago (17th ed.)

Hughes, Michael, i Kroehler,Carolyn J. Sociology: The Core. 7th ed. Boston: McGraw - Hill, 2005.

Cita MLA (9th ed.)

Hughes, Michael, i Kroehler,Carolyn J. Sociology: The Core. 7th ed. McGraw - Hill, 2005.