Cita APA (7a ed.)

Lewis, S., Cooper, C. L., & Bennett, D. (1994). Psychosocial factors and Chronic fatigue syndrome. [s.n.].

Cita Chicago Style (17a ed.)

Lewis, Suzan, Cary L. Cooper, y Derrick Bennett. Psychosocial Factors and Chronic Fatigue Syndrome. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Lewis, Suzan, et al. Psychosocial Factors and Chronic Fatigue Syndrome. [s.n.], 1994.