APA aipamena

Boyes, W. J., & Melvin, M. (1991). Economics. Houghton Mifflin.

Chicago Style aipamena

Boyes, William J., and Michael Melvin. Economics. Boston: Houghton Mifflin, 1991.

MLA aipamena

Boyes, William J., and Michael Melvin. Economics. Houghton Mifflin, 1991.