Gullion, E. A. (1968). Uses of the sea. Prentice-Hall.
Cita Chicago (17th ed.)Gullion, Edmund A. Uses of the Sea. Englewood Cliffs: Prentice-Hall, 1968.
Cita MLA (9th ed.)Gullion, Edmund A. Uses of the Sea. Prentice-Hall, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.