Harmin, M., Sax, S., & Loverti, J. (1977). A peaceable classroom: Activities to calm and free student energies. Winston Press.
Chicago-Zitierstil (17. Ausg.)Harmin, Merrill, Saville Sax, und Joe Loverti. A Peaceable Classroom: Activities to Calm and Free Student Energies. Minneapolis, Minn: Winston Press, 1977.
MLA-Zitierstil (9. Ausg.)Harmin, Merrill, et al. A Peaceable Classroom: Activities to Calm and Free Student Energies. Winston Press, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.