Estudios Graduados
Nueva York: Gregg Publishing Company, (1927). 16mo. Wraps. viii, 157 p. [88525]
Nueva York: Gregg Publishing Company, (1927). 16mo. Wraps. viii, 157 p. [88525]
London: Grafton & Co., (1959). 8vo. Blue cloth, stamped in gilt. viii, 183 p. 2nd ed. [80645]