Umila, B. V. Path analysis and the discrepancy evaluation model: An approach to program evaluation. Education quarterly..
芝加哥风格引文Umila, Benwardo V. "Path Analysis and the Discrepancy Evaluation Model: An Approach to Program Evaluation." Education Quarterly. .
MLA引文Umila, Benwardo V. "Path Analysis and the Discrepancy Evaluation Model: An Approach to Program Evaluation." Education Quarterly., .
警告：这些引文格式不一定是100％准确.