Bullock, A. (1977). Is history becoming a social science?: The case of contemporary history. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBullock, Alan. Is History Becoming a Social Science?: The Case of Contemporary History. Cambridge University Press, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBullock, Alan. Is History Becoming a Social Science?: The Case of Contemporary History. Cambridge University Press, 1977.
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