Cita APA (7a ed.)

Hall, G. H., Hamilton, W. T., & Round, A. P. (1998). Increased illness experience preceding chronic fatigue syndrome: A case control study. [s.n.].

Cita Chicago Style (17a ed.)

Hall, G. H., W. T. Hamilton, y A. P. Round. Increased Illness Experience Preceding Chronic Fatigue Syndrome: A Case Control Study. [S.l.]: [s.n.], 1998.

Cita MLA (9a ed.)

Hall, G. H., et al. Increased Illness Experience Preceding Chronic Fatigue Syndrome: A Case Control Study. [s.n.], 1998.