Grossnickle, D. R. (1989). Helping students develop self-motivation: A sourcebook for parents and educators. National Assoc. of Secondary School Principals.
Chicago-Zitierstil (17. Ausg.)Grossnickle, Donald R. Helping Students Develop Self-motivation: A Sourcebook for Parents and Educators. Reston, Va: National Assoc. of Secondary School Principals, 1989.
MLA-Zitierstil (9. Ausg.)Grossnickle, Donald R. Helping Students Develop Self-motivation: A Sourcebook for Parents and Educators. National Assoc. of Secondary School Principals, 1989.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.