APA (7th ed.) Citation

Ball, G. V., & Koopman, W. J. (1986). Clinical rheumatology. Saunders.

Chicago Style (17th ed.) Citation

Ball, Gene V., and William J. Koopman. Clinical Rheumatology. Philadelphia u.a: Saunders, 1986.

MLA (9th ed.) Citation

Ball, Gene V., and William J. Koopman. Clinical Rheumatology. Saunders, 1986.