Birkland, T. A. (2006). Lessons of disaster: Policy change after catastrophic events. Georgetown University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBirkland, Thomas A. Lessons of Disaster: Policy Change After Catastrophic Events. Washington, D.C.: Georgetown University Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBirkland, Thomas A. Lessons of Disaster: Policy Change After Catastrophic Events. Georgetown University Press, 2006.
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