The problem of an international language /
Sack, Friedrich L.
Verein Schweizerischer Gymnasiallehrer.3n
World Organization of the Teaching Profession.
Washington : World Organization of the Teaching Profession,
c1951.
Originally published in the Proceedings of the Second Delegate Assembly of the World Organization of the Teaching Profession in July 1948, under title: Report on the problems of an international language, prepared by a special committee of the Verein Schweizerischer Gymnasiallehrer.
Includes bibliographical references.
Language, Universal.