Columbia subject headings:
Jews--Soviet Union--Biography.
Jews--United States--Biography.
Soviet Union--Biography.
Toback, David.
United States--Emigration and immigration--Biography.
Harvard subject headings:
Jews--Soviet Union--Biography
Jews--United States--Biography
Soviet Union--Biography
Toback, David
United States--Emigration and immigration--Biography.
Princeton subject headings:
Jews--Soviet Union--Biography.
Jews--United States--Biography.
Soviet Union--Biography.
Toback, David.
United States--Emigration and immigration--Biography.