by Albert P. Pinkevitch. Translated under the auspices of the International Institute, Teachers College, Columbia University, by Nucia Perlmutter. Edited by George S. CountsWilliams & Norgate1930
by Albert P. Pinkevitch ; translated under the auspices of the International Institute, Teachers College, Columbia University by Nucia Perlmutter ; edited by George S. CountsJohn Dayc1929
by Albert P. Pinkevitch ; translated under the auspices of the International Institute, Teachers College, Columbia University by Nucia Perlmutter ; edited by George S. CountsIn-house reproduction1929