Schaefer, D. (1987). Choices & consequences: What to do when a teenager uses alcohol, drugs; a step-by-step system that really works. Johnson Inst. Books.
Chicago-Zitierstil (17. Ausg.)Schaefer, Dick. Choices & Consequences: What to Do When a Teenager Uses Alcohol, Drugs; a Step-by-step System That Really Works. Minneapolis: Johnson Inst. Books, 1987.
MLA-Zitierstil (8. Ausg.)Schaefer, Dick. Choices & Consequences: What to Do When a Teenager Uses Alcohol, Drugs; a Step-by-step System That Really Works. Johnson Inst. Books, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.