Trethowan, D. (1987). Appraisal and target setting: A handbook for teacher development. P. Chapman Pub.
Chicago-viite (17. p.)Trethowan, David. Appraisal and Target Setting: A Handbook for Teacher Development. London: P. Chapman Pub, 1987.
MLA-viite (9. p.)Trethowan, David. Appraisal and Target Setting: A Handbook for Teacher Development. P. Chapman Pub, 1987.
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