APA (7e ed.) Bronvermelding

Não informado. (1969). Eric news. Eric Clearinghouse on Teacher Education.

Chicago (17e ed.) Bronvermelding

Não informado. Eric News. Washington: Eric Clearinghouse on Teacher Education, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Eric News. Eric Clearinghouse on Teacher Education, 1969.

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