Gale Group & Friedman, L. S. (2011). Oceans. Greenhaven Press.
Cita Chicago (17th ed.)Gale Group i Lauri S. Friedman. Oceans. Detroit: Greenhaven Press, 2011.
Cita MLA (8th ed.)Gale Group i Lauri S. Friedman. Oceans. Greenhaven Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.