Bass. The Politics and Civics of National Service. Brookings Institution Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBass. The Politics and Civics of National Service. Brookings Institution Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBass. The Politics and Civics of National Service. Brookings Institution Press.
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