APA (7 वां संस्करण) प्रशस्ति पत्र
Walling, C. B. (2013). All necessary measures: The United Nations and humanitarian intervention. University of Pennsylvania Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Walling, Carrie Booth. All Necessary Measures: The United Nations and Humanitarian Intervention. Philadelphia: University of Pennsylvania Press, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Walling, Carrie Booth. All Necessary Measures: The United Nations and Humanitarian Intervention. University of Pennsylvania Press, 2013.
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