Washington D.C., The Catholic University of America Press 1945 ix + 120pp., 23cm., softcover, text in English, Doctoral Dissertation (A Dissertation submitted to the Faculty of the Graduate School of Social Science of the Catholic University of America in partial fulfillment of the requirements for the degree of Doctor of Philosophy), in the series "Studies in Sociology" no.13, stamp at verso of title page, text is clean and bright, F110079