APA (7e ed.) Bronvermelding

Feier, R. (1930). Elements of economics (with problems). College Entrance Book.

Chicago (17e ed.) Bronvermelding

Feier, Richard. Elements of Economics (with Problems). New York: College Entrance Book, 1930.

MLA (8e ed.) Bronvermelding

Feier, Richard. Elements of Economics (with Problems). College Entrance Book, 1930.

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