- Slavic Europe; A Selected Bibliography In The Western European Languages, Comprising History, Languages And Literatures
- Bohemia in the Eighteenth Century: A Study in Political, Economic, and Social History With Special Reference to the Reign of Leopold Ii, 1790-1792 (The Russian Series, V. 7)
- The Urge to the Sea: The Course of Russian History: The Role of Rivers, Portages, Ostrogs, Monasteries, and Furs
- The Balkan Conferences and the Balkan Entente, 1930-1935: A Study in the Recent History of the Balkan and Near Eastern Peoples
- The Russian Revolution