Cita APA (7a ed.)

Demitrack, M. A., & Greden, J. F. (1991). Chronic fatigue syndrome: The need for an integrative approach. [s.n.].

Cita Chicago Style (17a ed.)

Demitrack, Mark A., y John F. Greden. Chronic Fatigue Syndrome: The Need for an Integrative Approach. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Demitrack, Mark A., y John F. Greden. Chronic Fatigue Syndrome: The Need for an Integrative Approach. [s.n.], 1991.