Columbia subject headings:
Rerikh family--Research--Dictionaries.
Rerikh family--Research.
Rerikh, E. I. (Elena Ivanovna), 1879-1955--Bibliography.
Rerikh, S. N. (Svi︠a︡toslav Nikolaevich)--Bibliography.
Roerich, George--Bibliography.
Roerich, Nicholas, 1874-1947--Bibliography.
Theosophists--Bibliography.
Harvard subject headings:
Rerikh family--Research--Biography.
Rerikh family--Research--Dictionaries.
Princeton subject headings:
Rerikh family--Research--Biography.
Rerikh family--Research--Dictionaries.