APA aipamena

American Rheumatism Association., & National Library of Medicine (U.S.). Index of rheumatology. New York: American Rheumatism Assn.

Chicago Style aipamena

American Rheumatism Association., y National Library of Medicine (U.S.). Index of Rheumatology. New York: American Rheumatism Assn.

MLA aipamena

American Rheumatism Association., y National Library of Medicine (U.S.). Index of Rheumatology. New York: American Rheumatism Assn.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.