International Institute for Applied Systems Analysis. (2019). .Options: .The power of the crowd. International Institute for Applied Systems Analysis.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Institute for Applied Systems Analysis. .Options: .The Power of the Crowd. New york: International Institute for Applied Systems Analysis, 2019.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Institute for Applied Systems Analysis. .Options: .The Power of the Crowd. International Institute for Applied Systems Analysis, 2019.
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