APA (7th ed.) Citation

Ehrlich, D. J., Millonzi, J. C., & Arroyo, G. (1987). PC economics. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Ehrlich, Dan J., Joel C. Millonzi, and Gilberto Arroyo. PC Economics. Boston [etc.]: Houghton Mifflin, 1987.

MLA (9th ed.) Citation

Ehrlich, Dan J., et al. PC Economics. Houghton Mifflin, 1987.