APA (7e ed.) Bronvermelding

Não informado. (1982). Work and occupations. Lage Publications.

Chicago (17e ed.) Bronvermelding

Não informado. Work and Occupations. Newbury Park, Calif: Lage Publications, 1982.

MLA (8e ed.) Bronvermelding

Não informado. Work and Occupations. Lage Publications, 1982.

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