Ambiguity and controversy : an introduction -- Notes on the psycho-analytical investigation and treatment of manic-depressive insanity and allied conditions / Karl Abraham -- Mourning and melancholia / Sigmund Freud -- Edward Bibring's theory of depression / David Rapaport -- An intensive study of twelve cases of manic-depressive psychosis / Mabel Blake Cohen [and others] -- A behavioral approach to depression / Peter M. Lewinsohn -- Learned helplessness and depression / William R. Miller, Robert A. Rosellini, Martin E.P. Seligman -- A self-control model of depression / Lynn P. Rehm -- Maladaptive cognitive structures in depression / Maria Kovacs and Aaron T. Beck -- Learned helplessness in humans : critique and reformulation / Lyn Y. Abramson, Martin E.P. Seligman, and John D. Teasdale.

Toward an interactional description of depression / James C. Coyne -- Psychosocial theory and research on depression: an integrative framework and review / Andrew G. Billings and Rudolf H. Moos -- Depression : a comprehensive theory / Ernest S. Becker -- A three-factor causal model of depression / George W. Brown -- Risk factors for depression: what do we learn from them? / Lenore Sawyer Radloff -- Controversies in depression, or do clinicians know something after all? / George Winokur -- Recent genetic studies of bipolar and unipolar depression / David L. Dunner -- A summary of biomedical aspects of mood disorders / Ross J. Baldessarini.