APA (7e ed.) Bronvermelding

Não informado. (1958). Educational Research. National Foundation for Educational Research.

Chicago (17e ed.) Bronvermelding

Não informado. Educational Research. Oxfordshire, Inglaterra: National Foundation for Educational Research, 1958.

MLA (8e ed.) Bronvermelding

Não informado. Educational Research. National Foundation for Educational Research, 1958.

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