Sobel, F. S. (1936). Teachers' marks and objective test as indices of school adjustement. Columbia University.
Cita Chicago Style (17a ed.)Sobel, Frances S. Teachers' Marks and Objective Test as Indices of School Adjustement. New York: Columbia University, 1936.
Cita MLA (9a ed.)Sobel, Frances S. Teachers' Marks and Objective Test as Indices of School Adjustement. Columbia University, 1936.
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