APA (7e ed.) Bronvermelding

Não informado. (1982). Contributions to Political Economy. Academic Press.

Chicago (17e ed.) Bronvermelding

Não informado. Contributions to Political Economy. London: Academic Press, 1982.

MLA (8e ed.) Bronvermelding

Não informado. Contributions to Political Economy. Academic Press, 1982.

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