APA (7th ed.) Citation

Haigh, W. L., & Harper, L. (1997). The power of logos: How to create effective company logos. John Wiley & Sons..

Chicago Style (17th ed.) Citation

Haigh, William L., and Laurel Harper. The Power of Logos: How to Create Effective Company Logos. New York: John Wiley & Sons., 1997.

MLA (9th ed.) Citation

Haigh, William L., and Laurel Harper. The Power of Logos: How to Create Effective Company Logos. John Wiley & Sons., 1997.