APA (7e ed.) Bronvermelding

Samuelson, P. A., & Nordhaus, W. D. (1985). Economics (12th ed.). McGraw-Hill Book.

Chicago (17e ed.) Bronvermelding

Samuelson, Paul A., en William D. Nordhaus. Economics. 12th ed. New York: McGraw-Hill Book, 1985.

MLA (9e ed.) Bronvermelding

Samuelson, Paul A., en William D. Nordhaus. Economics. 12th ed. McGraw-Hill Book, 1985.