Langton, C. V. N. (1941). Orientation in school health. Harper & brothers.
Chicago Style aipamenaLangton, Clair Van Norman. Orientation in School Health. New York, London: Harper & brothers, 1941.
MLA aipamenaLangton, Clair Van Norman. Orientation in School Health. Harper & brothers, 1941.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.