Langton, C. V. N. (1961). School health organization and services. Ronald Press.
Chicago-referens (17:e uppl.)Langton, Clair Van Norman. School Health Organization and Services. New York: Ronald Press, 1961.
MLA-referens (9:e uppl.)Langton, Clair Van Norman. School Health Organization and Services. Ronald Press, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.