Toynbee, A. J. (1951). A studie of history: Abridgement of volumes I-VI by D. C. Somervell. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रToynbee, Arnold J. A Studie of History: Abridgement of Volumes I-VI by D. C. Somervell. New York [u.a.]: Oxford University Press, 1951.
एमएलए (8वां संस्करण) प्रशस्ति पत्रToynbee, Arnold J. A Studie of History: Abridgement of Volumes I-VI by D. C. Somervell. Oxford University Press, 1951.
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