APA (7th ed.) Citation

Duignan, B. (2010). The 100 most influential philosophers of all time. Britannica Educational Publishing.

Chicago Style (17th ed.) Citation

Duignan, Brian. The 100 Most Influential Philosophers of All Time. New York: Britannica Educational Publishing, 2010.

MLA (9th ed.) Citation

Duignan, Brian. The 100 Most Influential Philosophers of All Time. Britannica Educational Publishing, 2010.

Warning: These citations may not always be 100% accurate.