Osterhammel, J. "Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel. Comparing empires : encounters and transfers in the long nineteenth century.(2011).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOsterhammel, Jürgen. ""Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel." Comparing Empires : Encounters and Transfers in the Long Nineteenth Century.(2011) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रOsterhammel, Jürgen. ""Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel." Comparing Empires : Encounters and Transfers in the Long Nineteenth Century.(2011), .
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