Christison, M. (1977). Student Contracts As One Method for Individualizing a Course Concerned with the "Selection of Instructional Materials.".
Cita Chicago Style (17a ed.)Christison, Milton. Student Contracts As One Method for Individualizing a Course Concerned with the "Selection of Instructional Materials.". 1977.
Cita MLA (9a ed.)Christison, Milton. Student Contracts As One Method for Individualizing a Course Concerned with the "Selection of Instructional Materials.". 1977.
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