Gordon, T. (2000). Parent effectiveness training: The proven program for raising responsible children (1. rev. pbk. ed.). Three Rivers Press.
Chicago-Zitierstil (17. Ausg.)Gordon, Thomas. Parent Effectiveness Training: The Proven Program for Raising Responsible Children. 1. rev. pbk. ed. New York: Three Rivers Press, 2000.
MLA-Zitierstil (9. Ausg.)Gordon, Thomas. Parent Effectiveness Training: The Proven Program for Raising Responsible Children. 1. rev. pbk. ed. Three Rivers Press, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.