APA (7e ed.) Bronvermelding

Harmin, M., & Sax, S. (1977). A peaceable classroom: Activities to calm and free student energies. Winston Press.

Chicago (17e ed.) Bronvermelding

Harmin, Merrill, en Saville Sax. A Peaceable Classroom: Activities to Calm and Free Student Energies. Minneapolis: Winston Press, 1977.

MLA (9e ed.) Bronvermelding

Harmin, Merrill, en Saville Sax. A Peaceable Classroom: Activities to Calm and Free Student Energies. Winston Press, 1977.