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              Block, J. H., Gjerde, P. F. & Block, J. H. (1991). Personality antecedents of depressive tendencies in 18- year-olds: A prospective study. Journal of Personality and Social Psychology, 60, 726-738. doi:10.1037/0022-3514.60.5.726.
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              Block, J., Gjerde, P. F. & Block, J. H. (1991). Personality antecedents of depressive tendencies in 18- year-olds: A prospective study. Journal of Personality and Social Psychology, 60, 726-738.
                 (xsd:string)
              
            
              Block, J., Gjerde, P. F. & Block, J. H. (1991). Personality antecedents of depressive tendencies in 18- year-olds: A prospective study. Journal of Personality and Social Psychology, 60, 726-738. doi:10.1037/0022-3514.60.5.726.
                 (xsd:string)
              
            
              Block, J., Gjerde, P. F., & Block, J. H. (1991). Personality antecedents of depressive tendencies in 18- year-olds: A prospective study. Journal of Personality and Social Psychology, 60, 726-738.
                 (xsd:string)
              
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