Cita APA (7a ed.)

Wurth, P. (1994). A psychiatrist's approach to dual diagnosis. [s.n.].

Cita Chicago Style (17a ed.)

Wurth, Peter. A Psychiatrist's Approach to Dual Diagnosis. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Wurth, Peter. A Psychiatrist's Approach to Dual Diagnosis. [s.n.], 1994.