rees, c. j. v. (1964). some remarks on tinbergen's approach of project appraisal. the institute of national planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रrees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. cairo: the institute of national planning, 1964.
एमएलए (9वां संस्करण) प्रशस्ति पत्रrees, c. j. van. Some Remarks on Tinbergen's Approach of Project Appraisal. the institute of national planning, 1964.
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