Dyfyniad APA

Samuelson, P. A., Coleman, J. R., & Skidmore, F. (1967). Readings in economics (5th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Samuelson, Paul A., John R. Coleman, and Felicity Skidmore. Readings in Economics. 5th ed. New York: McGraw-Hill, 1967.

Dyfyniad MLA

Samuelson, Paul A., et al. Readings in Economics. 5th ed. McGraw-Hill, 1967.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.