Cita APA (7a ed.)

David, A. S. (1990). Tired, weak, or in need of rest: Fatigue among general practice attenders. [s.n.].

Cita Chicago Style (17a ed.)

David, Anthony S. Tired, Weak, or in Need of Rest: Fatigue Among General Practice Attenders. [S.l.]: [s.n.], 1990.

Cita MLA (9a ed.)

David, Anthony S. Tired, Weak, or in Need of Rest: Fatigue Among General Practice Attenders. [s.n.], 1990.