APA (7e ed.) Bronvermelding

Sharp, D. L. L. (1957). Why teach? Holt.

Chicago (17e ed.) Bronvermelding

Sharp, Delia Louise Larson. Why Teach? New York: Holt, 1957.

MLA (9e ed.) Bronvermelding

Sharp, Delia Louise Larson. Why Teach? Holt, 1957.