APA (7e ed.) Bronvermelding

Não informado. (1969). Today's education. National Education Association.

Chicago (17e ed.) Bronvermelding

Não informado. Today's Education. Washington: National Education Association, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Today's Education. National Education Association, 1969.

Let op: Deze citaties zijn niet altijd 100% accuraat.