Columbia subject headings:
Businessmen--United States--Biography.
Businesswomen--United States--Biography.
Helmsley, Harry.
Helmsley, Leona.
Hotels--United States--History.
Real estate developers--United States--Biography.
Harvard subject headings:
Bars (Drinking establishments)--United States--History.
Businesswomen--United States--Biography.
Helmsley, Harry.
Helmsley, Leona.
Hotels--United States--History.
Real estate developers--United States--Biography
Princeton subject headings:
Businessmen--United States--Biography.
Businesswomen--United States--Biography.
Helmsley, Harry.
Helmsley, Leona.
Hotels--United States--History.
Real estate developers--United States--Biography.