@article{Landis2006, author = {Bern Landis}, title = {Erich Fromm, un norte constante}, 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. 97-102. [= Spanish translation of Landis, B., 1993]}, year = {2006}, }