Describir: Principales of social economy / by Valère Fallon, S. J. Doctor of political and social sciences professor at the College of Philosophy and Theology of the Society of Jesus, Louvain ; translated by Rev.John L. McNulty, PH. D. professor at seton hall college ; revised and adapted for the United States by Bert C. Goss, A. M., D. C. S. instructor in economics, New York University