APA (7e ed.) Bronvermelding

Pugel, T. A. (2016). International economics (16th ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Pugel, Thomas A. International Economics. 16th ed. New York, NY: McGraw-Hill, 2016.

MLA (9e ed.) Bronvermelding

Pugel, Thomas A. International Economics. 16th ed. McGraw-Hill, 2016.