APA (7e ed.) Bronvermelding

Não informado. (1938). Occupational Psychology. National Institute of Industrial Psychology.

Chicago (17e ed.) Bronvermelding

Não informado. Occupational Psychology. London: National Institute of Industrial Psychology, 1938.

MLA (8e ed.) Bronvermelding

Não informado. Occupational Psychology. National Institute of Industrial Psychology, 1938.

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