APA (7 वां संस्करण) प्रशस्ति पत्र
Wrobel, L. A., & Wrobel, S. M. (2009). Disaster recovery planning for communications and critical infrastructure. Artech House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Wrobel, Leo A., और Sharon M. Wrobel. Disaster Recovery Planning for Communications and Critical Infrastructure. Boston: Artech House, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Wrobel, Leo A., और Sharon M. Wrobel. Disaster Recovery Planning for Communications and Critical Infrastructure. Artech House, 2009.
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