Freeman, O. W. (1951). Geography of the Pacific. John Wiley & Sons, Inc.
Cita Chicago (17th ed.)Freeman, Otis Willard. Geography of the Pacific. New York: John Wiley & Sons, Inc, 1951.
Cita MLA (9th ed.)Freeman, Otis Willard. Geography of the Pacific. John Wiley & Sons, Inc, 1951.
Atenció: Aquestes cites poden no estar 100% correctes.