@article{Tajonar2006, author = {H. Tajonar}, title = {Pr{\´o}logo}, journal = {El Humanismo de Erich Fromm, ed. by Jorge Silva Garc{\´i}a, Mexico and Barcelona (Paid{\´o}s - Paid{\´o}s Croma 40) 2006, pp. 9-15.}, year = {2006}, }