Cita APA (7a ed.)

Walford, G. A., Nelson, W. M., & MacCluskey, D. R. (1993). Fatigue, depression, and social adjustment in chronic fatigue syndrome. [s.n.].

Cita Chicago Style (17a ed.)

Walford, G. A., W. McC Nelson, y D. R. MacCluskey. Fatigue, Depression, and Social Adjustment in Chronic Fatigue Syndrome. [S.l.]: [s.n.], 1993.

Cita MLA (9a ed.)

Walford, G. A., et al. Fatigue, Depression, and Social Adjustment in Chronic Fatigue Syndrome. [s.n.], 1993.