Cita APA (7th ed.)

Gwartney,James D, & Stroup,Richard L. (1997). Economics: Private and public choice (8th ed.). Dryden Press.

Cita Chicago (17th ed.)

Gwartney,James D, i Stroup,Richard L. Economics: Private and Public Choice. 8th ed. Fort Worth: Dryden Press, 1997.

Cita MLA (9th ed.)

Gwartney,James D, i Stroup,Richard L. Economics: Private and Public Choice. 8th ed. Dryden Press, 1997.