Columbia subject headings:
Harvard subject headings:
Nikolov, Raĭcho Nikolov, 1840-1885--Fiction.
Princeton subject headings:
Bulgaria--History--1762-1878.
Bulgaria--History--Alexander, 1879-1886.
Bulgaria. Armii︠a︡--Biography.
Nikolov, Raĭcho Nikolov, 1840-1885.
Soldiers--Bulgaria--Biography.