Sumich, J. L. (1976). An Introduction to the Biology of Marine Life (5th ed.). Wm. C. Brown Publishers.
Cita Chicago (17th ed.)Sumich, James L. An Introduction to the Biology of Marine Life. 5th ed. Wm. C. Brown Publishers, 1976.
Cita MLA (9th ed.)Sumich, James L. An Introduction to the Biology of Marine Life. 5th ed. Wm. C. Brown Publishers, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.