The Nuttall Encyclopædia,Meyers Konversations-Lexikon, 4. Auflage (1885–1890),Meyers Konversations-Lexikon, 4. Auflage (1885–1890),Brockhaus and Efron Encyclopedic Dictionary,Small Brockhaus and Efron Encyclopedic Dictionary,Explanatory Dictionary of the Living Great Russian Language,Encyclopædia Britannica 11th edition,The New Student's Reference Work,Granat Encyclopedic Dictionary
