Ostrom, E. (1990). Covering the commons: The evolution of institutions for collective action. The Univ. Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOstrom, Elinor. Covering the Commons: The Evolution of Institutions for Collective Action. The Univ. Press, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOstrom, Elinor. Covering the Commons: The Evolution of Institutions for Collective Action. The Univ. Press, 1990.
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