Cita APA (7a ed.)

Wessely, S., & Hotopf, M. (1999). Is fibromyalgia a distinct clinical entity?: Historical and epidemiological evidence. [s.n.].

Cita Chicago Style (17a ed.)

Wessely, Simon, y Matthew Hotopf. Is Fibromyalgia a Distinct Clinical Entity?: Historical and Epidemiological Evidence. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Wessely, Simon, y Matthew Hotopf. Is Fibromyalgia a Distinct Clinical Entity?: Historical and Epidemiological Evidence. [s.n.], 1999.