Cita APA (7a ed.)

Harf, J. E., & Lombardi, M. O. (2001). Taking sides. McGraw-Hill : Dushkin.

Cita Chicago Style (17a ed.)

Harf, James E., y Mark Owen Lombardi. Taking Sides. Guilford, Conn.: McGraw-Hill : Dushkin, 2001.

Cita MLA (8a ed.)

Harf, James E., y Mark Owen Lombardi. Taking Sides. McGraw-Hill : Dushkin, 2001.