Cita APA (7th ed.)

Klippel, J. H., Weyand, C. M., & Wortmann, R. (1997). Primer on the rheumatic diseases (11th ed.). Arthritis Foundation.

Cita Chicago (17th ed.)

Klippel, John H., Cornelia M. Weyand, i Robert Wortmann. Primer on the Rheumatic Diseases. 11th ed. Atlanta, GA: Arthritis Foundation, 1997.

Cita MLA (9th ed.)

Klippel, John H., et al. Primer on the Rheumatic Diseases. 11th ed. Arthritis Foundation, 1997.