Umila, B. V. Path analysis and the discrepancy evaluation model: An approach to program evaluation. Education quarterly..
Цитирование в стиле Чикаго (17-е изд.)Umila, Benwardo V. "Path Analysis and the Discrepancy Evaluation Model: An Approach to Program Evaluation." Education Quarterly. .
Цитирование MLA (9-е изд.)Umila, Benwardo V. "Path Analysis and the Discrepancy Evaluation Model: An Approach to Program Evaluation." Education Quarterly., .
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.