United Nations United Nations. (1950). Formulation and Economic Appraisal of Development Projects: Book 2 (1.). Technical Assistance Administration training Institute on Economic Appraisal of Development Projects.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations United Nations. Formulation and Economic Appraisal of Development Projects: Book 2. 1. United Nations: Technical Assistance Administration training Institute on Economic Appraisal of Development Projects, 1950.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations United Nations. Formulation and Economic Appraisal of Development Projects: Book 2. 1. Technical Assistance Administration training Institute on Economic Appraisal of Development Projects, 1950.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.