Columbia subject headings:
Bernstein, Alfred.
Bernstein, Sylvia.
Communists--United States--Biography.
Harvard subject headings:
Bernstein, Alfred.
Bernstein, Sylvia, -2003.
Bernstein, Sylvia.
Communists--United States--Biography
Princeton subject headings:
Bernstein, Alfred.
Bernstein, Sylvia, -2003.
Communists--United States--Biography.