Samuelson, P. A., Coleman, J. R., & Skidmore, F. (1967). Readings in economics (5th ed.). McGraw-Hill.
Cita Chicago (17th ed.)Samuelson, Paul A., John R. Coleman, i Felicity Skidmore. Readings in Economics. 5th ed. New York: McGraw-Hill, 1967.
Cita MLA (9th ed.)Samuelson, Paul A., et al. Readings in Economics. 5th ed. McGraw-Hill, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.