Davey, G., & Tallis, F. (1994). Worrying: Perspectives on theory, assessment, and treatment. Wiley.
Cita Chicago (17th ed.)Davey, Graham, i Frank Tallis. Worrying: Perspectives on Theory, Assessment, and Treatment. Chichester: Wiley, 1994.
Cita MLA (9th ed.)Davey, Graham, i Frank Tallis. Worrying: Perspectives on Theory, Assessment, and Treatment. Wiley, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.