Cita APA (7a ed.)

Komaroff, A. L., & Buchwald, D. (1991). Symptoms and signs of chronic fatigue syndrome. [s.n.].

Cita Chicago Style (17a ed.)

Komaroff, Anthony L., y Debra Buchwald. Symptoms and Signs of Chronic Fatigue Syndrome. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Komaroff, Anthony L., y Debra Buchwald. Symptoms and Signs of Chronic Fatigue Syndrome. [s.n.], 1991.

Precaución: Estas citas no son 100% exactas.