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- Bulgaria by FrankFox, 2010-09-26
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- Researches On the Danube and the Adriatic; Or Contributions to the Modern History of Hungary and Translvania, Dalmatia and Croatia, Servia and Bulgaria, Volume 2 by Andrew Archibald Paton, 2010-01-12
- Researches On the Danube and the Adriatic; Or Contributions to the Modern History of Hungary and Translvania, Dalmatia and Croatia, Servia and Bulgaria, Volume 1 by Andrew Archibald Paton, 2010-03-07
- Researches on the Danube and the Adriatic: Or, Contributions to the Modern History of Hungary and Transylvania, Dalmatia and Croatia, Servia and Bulgaria. Volume 2 by Andrew Archibald Paton, 2002-04-12
- Researches on the Danube and the Adriatic: or, Contributions to the modern history of Hungary and Transylvania, Dalmatia and Croatia, Servia and Bulgaria by A A. 1811-1874 Paton, 2010-07-30
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