Cita APA (7th ed.)

George, J. D. (1979). Marine life: An illustrated encyclopedia of invertebrates in the sea. John Wiley and Sons.

Cita Chicago (17th ed.)

George, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.

Cita MLA (9th ed.)

George, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.