APA (7th ed.) Citation

Simpkins, C. A., & Simpkins, A. M. (2002). Chung Do Kwan: The power of Tae Kwon Do. Tuttle Publishing.

Chicago Style (17th ed.) Citation

Simpkins, C. Alexander, and Annellen M. Simpkins. Chung Do Kwan: The Power of Tae Kwon Do. Massachusetts: Tuttle Publishing, 2002.

MLA (9th ed.) Citation

Simpkins, C. Alexander, and Annellen M. Simpkins. Chung Do Kwan: The Power of Tae Kwon Do. Tuttle Publishing, 2002.