Cita APA (7a ed.)

Beh, H. C., Connelly, N., & Charles, M. (1997). Effect of noise stress on chronic fatigue syndrome patients. [s.n.].

Cita Chicago Style (17a ed.)

Beh, Helen C., Nicholas Connelly, y Margaret Charles. Effect of Noise Stress on Chronic Fatigue Syndrome Patients. [S.l.]: [s.n.], 1997.

Cita MLA (9a ed.)

Beh, Helen C., et al. Effect of Noise Stress on Chronic Fatigue Syndrome Patients. [s.n.], 1997.