APA (7e ed.) Bronvermelding

Farmer, R. E. (1999). Macroeconomics. South-Western.

Chicago (17e ed.) Bronvermelding

Farmer, Roger E.A. Macroeconomics. Cincinnati: South-Western, 1999.

MLA (9e ed.) Bronvermelding

Farmer, Roger E.A. Macroeconomics. South-Western, 1999.