GEERT, P. V. (1994). Dyanamic systems of development: Change between comple-xity and chaos. Harvester Wheatsheaf.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGEERT, Paul Van. Dyanamic Systems of Development: Change Between Comple-xity and Chaos. New York: Harvester Wheatsheaf, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGEERT, Paul Van. Dyanamic Systems of Development: Change Between Comple-xity and Chaos. Harvester Wheatsheaf, 1994.
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