Columbia subject headings:
Merchant marine--Biography.
Onassis, Aristotle Socrates, 1906-1975.
Harvard subject headings:
Merchant marine--Biography.
Onassis, Aristotle Socrates, 1906-1975.
Shipowners--Biography.
Princeton subject headings:
Merchant marine--Biography.
Onassis, Aristotle Socrates, 1906-1975.