Columbia subject headings:
Education--Russia (Federation)--Saint Petersburg--History.
Gimnazii͡a i realʹnoe uchilishche K.I. Mai͡a--History.
Maĭ, Karl Ivanovich, 1820-1895.
Rerikh family--Archives.
Rerikh, S. N. (Svi︠a︡toslav Nikolaevich)
Roerich, George.
Roerich, Nicholas, 1874-1947.
Harvard subject headings:
Education--Russia (Federation)--Saint Petersburg--History.
Gimnazii͡a i realʹnoe uchilishche K.I. Mai͡a--History.
Maĭ, Karl Ivanovich, 1820-1895.
Rerikh family--Archives.
Rerikh, S. N. (Svi︠a︡toslav Nikolaevich)
Roerich, George
Roerich, Nicholas, 1874-1947
Princeton subject headings: