Cita APA

Gelles, R. J., & Levine, A. (1999). Sociology: An introduction (6 th ed.). Boston: McGraw-Hill College.

Citación estilo Chicago

Gelles, Richard J., y Ann Levine. Sociology: An Introduction. 6 th ed. Boston: McGraw-Hill College, 1999.

Cita MLA

Gelles, Richard J., y Ann Levine. Sociology: An Introduction. 6 th ed. Boston: McGraw-Hill College, 1999.