Cita APA (7th ed.)

Nybakken & James W. (2001). Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea (5th ed.). Benjamin Cummings.

Cita Chicago (17th ed.)

Nybakken i James W. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. 5th ed. San Francisco, CA: Benjamin Cummings, 2001.

Cita MLA (9th ed.)

Nybakken i James W. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. 5th ed. Benjamin Cummings, 2001.