APA (7th ed.) Citation

Park, Y. H., Gerrard, J., & Park, Y. H. (2009). Tae kwon do: The ultimate reference guide to the world's most popular martial art (3rd ed.). Checkmark Books.

Chicago Style (17th ed.) Citation

Park, Yeon Hee, Jon Gerrard, and Yeon Hwan Park. Tae Kwon Do: The Ultimate Reference Guide to the World's Most Popular Martial Art. 3rd ed. New York: Checkmark Books, 2009.

MLA (9th ed.) Citation

Park, Yeon Hee, et al. Tae Kwon Do: The Ultimate Reference Guide to the World's Most Popular Martial Art. 3rd ed. Checkmark Books, 2009.