Columbia subject headings:
Bulgaria. Bŭlgarska narodna armii︠a︡--History.
Mutiny--Bulgaria.
World War, 1914-1918--Bulgaria.
Harvard subject headings:
Bulgaria. Armiia--Political activity.
Bŭlgarska rabotnicheska sot︠s︡ialdemokraticheska partii︠a︡.
Viiachev, Dimitur,
Princeton subject headings: