APA (7e ed.) Bronvermelding

Frank, R. (2007). Principles of economics-3rd ed (3rd.). Tata McGraw Hill.

Chicago (17e ed.) Bronvermelding

Frank, Robert. Principles of Economics-3rd Ed. 3rd. New Delhi: Tata McGraw Hill, 2007.

MLA (9e ed.) Bronvermelding

Frank, Robert. Principles of Economics-3rd Ed. 3rd. Tata McGraw Hill, 2007.