Cita APA

Jeffrey, A. K., & Jeffrey A. Kottler. (1994). Advanced group leadership. Pacific Grove, CA: Brooks/Cole.

Chicago Style Citation

Jeffrey, A. Kottler, i Jeffrey A. Kottler. Advanced Group Leadership. Pacific Grove, CA: Brooks/Cole, 1994.

Cita MLA

Jeffrey, A. Kottler, i Jeffrey A. Kottler. Advanced Group Leadership. Pacific Grove, CA: Brooks/Cole, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.