APA (7e ed.) Bronvermelding

Clifford, J. (1978). Aspects of economic development 1760 to 1960. Longman.

Chicago (17e ed.) Bronvermelding

Clifford, James. Aspects of Economic Development 1760 to 1960. London: Longman, 1978.

MLA (9e ed.) Bronvermelding

Clifford, James. Aspects of Economic Development 1760 to 1960. Longman, 1978.