Gwartney, J. D., & James D. Gwartney [et al]. (1982). Economics: Private and public choice (3rd ed.). Academic Press.

Gwartney, James D., and James D. Gwartney [et al]. Economics: Private and Public Choice. 3rd ed. New York: Academic Press, 1982.

Gwartney, James D., and James D. Gwartney [et al]. Economics: Private and Public Choice. 3rd ed. Academic Press, 1982.