APA (7th ed.) Citation

Yeon & Gerrard. (2009). Tae kwon do: The ultimate reference guide to theworld's most popular martial art (3rd ed.). Facts On File.

Chicago Style (17th ed.) Citation

Yeon and Gerrard. Tae Kwon Do: The Ultimate Reference Guide to Theworld's Most Popular Martial Art. 3rd ed. New York: Facts On File, 2009.

MLA (8th ed.) Citation

Yeon and Gerrard. Tae Kwon Do: The Ultimate Reference Guide to Theworld's Most Popular Martial Art. 3rd ed. Facts On File, 2009.