APA (7e ed.) Bronvermelding

Não informado. (1950). Adult Education. American Association for Adult & Continuing Education.

Chicago (17e ed.) Bronvermelding

Não informado. Adult Education. Chapel Hill, NC: American Association for Adult & Continuing Education, 1950.

MLA (8e ed.) Bronvermelding

Não informado. Adult Education. American Association for Adult & Continuing Education, 1950.

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