Columbia subject headings:
Harvard subject headings:
Bulgaria--Armed Forces--Romanies--History.
Bulgaria--Ethnic relations.
Bulgaria--History, Military.
Bulgaria--History--1878-1944.
Bulgaria. Armii︠a︡--History.
Romanies--Bulgaria--History.
Princeton subject headings:
Bulgaria--Armed Forces--Romanies--History.
Bulgaria--Ethnic relations.
Bulgaria--History, Military.
Bulgaria--History--1878-1944.
Bulgaria. Armii︠a︡--History.
Romanies--Bulgaria--History.