APA (7 वां संस्करण) प्रशस्ति पत्र

engert, M. (1963). new trends in polytechnic education special reference to planning of manpower demand in the long run. National Planning Institute.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

engert, M. New Trends in Polytechnic Education Special Reference to Planning of Manpower Demand in the Long Run. cairo: National Planning Institute, 1963.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

engert, M. New Trends in Polytechnic Education Special Reference to Planning of Manpower Demand in the Long Run. National Planning Institute, 1963.

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