Cita APA (7a ed.)

Alberg, J., Petry, C. A., Eller, S., Warger, C. L., Cook, B., & Cross, D. (1994). Social skills: Planning guide. Sopris West.

Cita Chicago Style (17a ed.)

Alberg, Joni, Christene A. Petry, Susan Eller, Cynthia L. Warger, Becky Cook, y Debbie Cross. Social Skills: Planning Guide. Longmont: Sopris West, 1994.

Cita MLA (9a ed.)

Alberg, Joni, et al. Social Skills: Planning Guide. Sopris West, 1994.