Cita APA

Spencer, D. G., Sturrock, R. D., & Buchanan, W. W. (1980). Ankylosing spondylitis: Yesterday and today.

Chicago Style Citation

Spencer, D G., R D. Sturrock, i W W. Buchanan. Ankylosing Spondylitis: Yesterday and Today. 1980.

Cita MLA

Spencer, D G., R D. Sturrock, i W W. Buchanan. Ankylosing Spondylitis: Yesterday and Today. 1980.