Clark, D. A. & Beck, A. T. (with Alford, B.) (1999). Scientific Foundations of Cognitive Theory and Therapy of Depression. New York: John Wiley & Sons. [Translation: Italian.]
Steer, R. A., Clark, D. A., Beck, A. T., & Ranieri, W. F. (1998). Common and specific dimensions of self-reported anxiety and depression: the BDI-II vs. the BDI-IA. Behaviour Research and Therapy, 37, 183-190.
Clark, D. A., Cook, A., & Snow, D. (1998). Depressive symptom differences in hospitalized, medically ill, depressed psychiatric inpatients and nonmedical controls. Journal of Abnormal Psychology, 107, 38-48.
Clark, D. A. (1997). Twenty years of cognitive assessment: Current status and future directions. Journal of Consulting and Clinical Psychology, 65, 996-1000.
Beck, A. T., & Clark, D. A. (1997). An information processing model of anxiety: reconsidering the role of automatic and strategic processes. Behaviour Research and Therapy, 35, 49-58.
Clark, D. A., & Steer, R. A. (1996). Empirical status of the cognitive model of anxiety and depression. P. Salkovskis (Ed.), Frontiers of cognitive therapy. New York: Guilford Press.
Clark, D. A., Steer, R. A., Beck, A. T., & Snow, D. (1996). Is the relationship between anxious and depressive cognitions and symptoms linear or curvilinear? Cognitive Therapy and Research, 20, 135-154.
Clark, D. A., & Purdon, C. (1995). The assessment of unwanted intrusive thoughts: A critique of the literature. Behaviour Research and Therapy, 33, 967-976.
Steer, R. A., Clark, D. A., Beck, A. T., & Ranieri, W. F. (1995). Common and specific dimensions of self-reported anxiety and depression: A replication. Journal of Abnormal Psychology, 104, 542-545.
Clark, D. A., Steer, R. A. & Beck, A. T. (1994). Common and specific dimensions of self-reported anxiety and depression: Implications for the cognitive and tripartite models. Journal of Abnormal Psychology, 103, 645-654.
Purdon, C. & Clark, D. A. (1994). Obsessive intrusive thoughts in nonclinical subjects. Part II. Cognitive appraisal, emotional response and thought control strategies. Behaviour Research and Therapy, 32, 403-410.
Clark, D. A. & Beck, A. T., & Beck, J. S. (1994). Symptom differences in major depression, dysthymia, panic and generalized anxiety disorder. American Journal of Psychiatry, 151, 205-209.
Clark, D. A. & Purdon, C. (1993). New perspectives for a cognitive theory of obsessions. Australian Psychologist, 28, 161-167.
Purdon, C. & Clark, D. A. (1993). Obsessive intrusive thoughts in nonclinical subjects. Part I. Content and relation with depressive, anxious and obsessional symptoms. Behaviour Research and Therapy, 31, 713-720.
Clark, D. A., Beck, A. T. & Brown, G. K. (1992). Sociotropy, autonomy and life event perceptions in dysphoric and nondysphoric individuals. Cognitive Therapy and Research, 16, 635-652.
Beck, A. T., Sokol, L., Clark, D. A., Berchick, B., & Wright, F. (1992). A crossover study of focused cognitive therapy for panic disorder. American Journal of Psychiatry, 149, 778-783.
Clark, D. A. (1992). Depressive, anxious and intrusive thoughts in psychiatric inpatients and outpatients. Behaviour Research and Therapy, 30, 93-102.
Clark, D. A., Beck, A. T. & Stewart, B. (1990) Cognitive specificity and positive-negative affectivity: Complementary or contradictory views on anxiety and depression? Journal of Abnormal Psychology, 99, 148-155.