TY - GEN TY - GEN T1 - Learned helplessness : a theory for the age of personal control A1 - Peterson, Christopher A2 - Maier, Steven F. A2 - Seligman, Martin E. P. LA - eng PP - New York PB - Oxford University Press YR - 1993 UL - https://kansalliskirjasto.finna.fi/Record/fikka.646756 OP - 359 SN - 0-19-504466-5 KW - Helplessness (Psychology) KW - Locus of control. KW - Psychology, Pathological. ER -