Columbia subject headings:
Bulgaria--Politics and government--1878-1944.
Liberalna partii͡a (Bulgaria)--Party work--History.
Harvard subject headings:
Bulgaria--History--Alexander, 1879-1886.
Bulgaria--Politics and government--1878-1944.
Constitutional history--Bulgaria
Liberalna partii︠a︡ (Bulgaria)--History.
Princeton subject headings:
Bulgaria--History--Alexander, 1879-1886.
Bulgaria--Politics and government--1878-1944.
Constitutional history--Bulgaria.
Liberalna partii︠a︡ (Bulgaria)--History.