Cita APA (7a ed.)

Columbia University. Educational Yearbook of the International Institute of Teachers College, 1924, 1925, 1926, 1927, 1928, 1931, 1932, 1934, 1935, 1936.

Cita Chicago Style (17a ed.)

Columbia University. Educational Yearbook of the International Institute of Teachers College, 1924, 1925, 1926, 1927, 1928, 1931, 1932, 1934, 1935, 1936.

Cita MLA (9a ed.)

Columbia University. Educational Yearbook of the International Institute of Teachers College, 1924, 1925, 1926, 1927, 1928, 1931, 1932, 1934, 1935, 1936.