Columbia subject headings:
Folk songs, Russian--History and criticism.
Pugachev, Emelʹi︠a︡n Ivanovich, -1775--In literature.
Harvard subject headings:
Folklore--Russia.
Razin, Stepan Timofeevich, -1671--Poetry--History and criticism.
Russia--History--Rebellion of Pugachev, 1773-1775.
Princeton subject headings: