Cita APA

Julián, J., & Julián, J. (1973). Social problems. New York, New York: Appleton Century Crofts.

Citación estilo Chicago

Julián, Joseph, y Joseph Julián. Social Problems. New York, New York: Appleton Century Crofts, 1973.

Cita MLA

Julián, Joseph, y Joseph Julián. Social Problems. New York, New York: Appleton Century Crofts, 1973.