APA (7e ed.) Bronvermelding

Schiller, B. R. (1999). Essentials of economics (3rd ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Schiller, Bradley R. Essentials of Economics. 3rd ed. Boston: McGraw-Hill, 1999.

MLA (9e ed.) Bronvermelding

Schiller, Bradley R. Essentials of Economics. 3rd ed. McGraw-Hill, 1999.