Cita APA (7a ed.)

Smith, A. P. (1999). Acute fatigue in chronic fatigue syndrome patients. [s.n.].

Cita Chicago Style (17a ed.)

Smith, A. P. Acute Fatigue in Chronic Fatigue Syndrome Patients. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Smith, A. P. Acute Fatigue in Chronic Fatigue Syndrome Patients. [s.n.], 1999.