APA (7th ed.) Citation

Pai, H. Y., Pai, S. J., & Leonard, J. (1981). The complete book of Chisanbop: Original finger calculation method. Van Nostrand Reinhold Co..

Chicago Style (17th ed.) Citation

Pai, Hang Young, Sung Jin Pai, and John Leonard. The Complete Book of Chisanbop: Original Finger Calculation Method. New York, N.Y.: Van Nostrand Reinhold Co., 1981.

MLA (9th ed.) Citation

Pai, Hang Young, et al. The Complete Book of Chisanbop: Original Finger Calculation Method. Van Nostrand Reinhold Co., 1981.