Osterhammel, J. "Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel. Comparing empires : encounters and transfers in the long nineteenth century.(2011).
Lua i Stíl Chicago (17ú heag.)Osterhammel, Jürgen. ""Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel." Comparing Empires : Encounters and Transfers in the Long Nineteenth Century.(2011) .
Lua MLA (8ú heag.)Osterhammel, Jürgen. ""Commentary": Measuring Imperial 'Success' and 'Failure' / Jürgen Osterhammel." Comparing Empires : Encounters and Transfers in the Long Nineteenth Century.(2011), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.