Columbia subject headings:
Harvard subject headings:
Novocherkassk (Russia)--History--Sources.
Platovskai︠a︡ gimnazii︠a︡ (Novocherkassk, Russia)--Biography--Sources.
Platovskai︠a︡ gimnazii︠a︡ (Novocherkassk, Russia)--History--Sources.
Princeton subject headings:
Platovskai︠a︡ gimnazii︠a︡ (Novocherkassk, Russia)--Biography--Sources.
Platovskai︠a︡ gimnazii︠a︡ (Novocherkassk, Russia)--History--Sources.