Cita APA (7a ed.)

Clements, P. J., & Furst, D. E. (1996). Systemic sclerosis. Williams & Wilkins.

Cita Chicago Style (17a ed.)

Clements, Philip J., y Daniel E. Furst. Systemic Sclerosis. Baltimore [etc.]: Williams & Wilkins, 1996.

Cita MLA (9a ed.)

Clements, Philip J., y Daniel E. Furst. Systemic Sclerosis. Williams & Wilkins, 1996.