Columbia subject headings:
Ex-communists--United States--Biography.
Sovietologists--United States--Biography.
Wolfe, Bertram D. (Bertram David), 1896-1977.
Harvard subject headings:
Ex-communists--United States--Biography.
Sovietologists--United States--Biography.
Wolfe, Bertram D. (Bertram David), 1896-1977
Princeton subject headings:
Ex-communists--United States--Biography.
Sovietologists--United States--Biography.
Wolfe, Bertram D. (Bertram David), 1896-1977.