Science Research Associates & American College Personnel Association. Educational and psychological measurement. Sage Publications.
Παραπομπή σε μορφή Chicago (17η εκδ.)Science Research Associates και American College Personnel Association. Educational and Psychological Measurement. Thousand Oaks, CA: Sage Publications.
Παραπομπή σε μορφή MLA (9th εκδ.)Science Research Associates και American College Personnel Association. Educational and Psychological Measurement. Sage Publications.
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