Columbia subject headings:
Ambassadors--United States--Biography.
Slēman, Agamemnōn, 1878-1954.
Harvard subject headings:
Ambassadors--United States--Biography
Slēman, Agamemnōn, 1878-1954
Princeton subject headings:
Ambassadors--United States--Biography.
Slēman, Agamemnōn, 1878-1954.