Cita APA (7a ed.)

Cowen, E. L. (1994). The enhancement of psychological wellness: Challenges and opportunities. [s.n.].

Cita Chicago Style (17a ed.)

Cowen, Emory L. The Enhancement of Psychological Wellness: Challenges and Opportunities. [S.l.]: [s.n.], 1994.

Cita MLA (9a ed.)

Cowen, Emory L. The Enhancement of Psychological Wellness: Challenges and Opportunities. [s.n.], 1994.