Wonnacott, P. (1982). Economics (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)Wonnacott, Paul. Economics. 2nd ed. New York: McGraw-Hill, 1982.
Cita MLA (9th ed.)Wonnacott, Paul. Economics. 2nd ed. McGraw-Hill, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.