APA (7th ed.) Citation

Porter, M. E., & Ong, C. G. (1988). Michael Porter on competitive strategy. Nathan/Tyler.

Chicago Style (17th ed.) Citation

Porter, Michael E., and Cheng G. Ong. Michael Porter on Competitive Strategy. Boston, MA: Nathan/Tyler, 1988.

MLA (9th ed.) Citation

Porter, Michael E., and Cheng G. Ong. Michael Porter on Competitive Strategy. Nathan/Tyler, 1988.