Cita APA (7th ed.)

Arthritis Foundation & Klippel, J. H. (2008). Primer on the rheumatic diseases (13th ed.). Springer.

Cita Chicago (17th ed.)

Arthritis Foundation i John H. Klippel. Primer on the Rheumatic Diseases. 13th ed. New York, NY: Springer, 2008.

Cita MLA (9th ed.)

Arthritis Foundation i John H. Klippel. Primer on the Rheumatic Diseases. 13th ed. Springer, 2008.