Cita APA

Gwartney, J. D., Stroup, R., & Studenmund, A. H. (1980). Economics, private and public choice (2d ed.). Academic Press.

Chicago Edition Citation

Gwartney, James D., Richard Stroup, i A. H. Studenmund. Economics, Private and Public Choice. 2d ed. New York: Academic Press, 1980.

Cita MLA

Gwartney, James D., et al. Economics, Private and Public Choice. 2d ed. Academic Press, 1980.