por Lazarus, Richard S [autor] | Aldekoa, Jasone [traductor].
por Cofer, Charles Norval [autor] | Cofer, Charles Norval. Motivation and emotion.
por Davis, Martha, 1947- [autor] | Zaplana, María N [traductor] | Mckay, Matthew [autor] | Robbins Eshelman, Elizabeth [autor] | Winemiller, Valerie [ilustrador].