APA (7e ed.) Bronvermelding

Não informado. (2001). Studies. American Council on Education.

Chicago (17e ed.) Bronvermelding

Não informado. Studies. Washington: American Council on Education, 2001.

MLA (8e ed.) Bronvermelding

Não informado. Studies. American Council on Education, 2001.

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