APA Style

Kelley, W, N. et al (1993). Textbook of Rheumatology. Vol. 1 (4th ed). Philadelphia: W.B. Saunders Company.

MLA Style

Kelley, William, N. et al. "Textbook of Rheumatology. Vol. 1". 4th ed Philadelphia: W.B. Saunders Company, 1993. print.