APA (7e ed.) Bronvermelding

Fletcher, J. (1984). Information sources in economics (2nd ed.). Butterworths.

Chicago (17e ed.) Bronvermelding

Fletcher, John. Information Sources in Economics. 2nd ed. London ; Boston: Butterworths, 1984.

MLA (9e ed.) Bronvermelding

Fletcher, John. Information Sources in Economics. 2nd ed. Butterworths, 1984.

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