APA-referens (7:e uppl.)
ebrary, Inc, Arum, R., & Velez, M. (2012). Improving learning environments: School discipline and student achievement in comparative perspective. Stanford University Press.
Chicago-referens (17:e uppl.)
ebrary, Inc, Richard Arum, och Melissa Velez. Improving Learning Environments: School Discipline and Student Achievement in Comparative Perspective. Stanford, Calif.: Stanford University Press, 2012.
MLA-referens (9:e uppl.)
ebrary, Inc, et al. Improving Learning Environments: School Discipline and Student Achievement in Comparative Perspective. Stanford University Press, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.