Samuelson, P. A. (1995). Economics. McGraw-Hill.
Cita Chicago (17th ed.)Samuelson, Paul A. Economics. New York: McGraw-Hill, 1995.
Cita MLA (9th ed.)Samuelson, Paul A. Economics. McGraw-Hill, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.