Cita APA (7a ed.)

Sumich, J. L., Sneed Collard, John Morrisey, Valerie Pennington, & Douglas Tupper. (1999). An introduction to the biology of marine life (Seventh Edition.). McGraw Hill.

Cita Chicago Style (17a ed.)

Sumich, James L., Sneed Collard, John Morrisey, Valerie Pennington, y Douglas Tupper. An Introduction to the Biology of Marine Life. Seventh Edition. Boston, MA: McGraw Hill, 1999.

Cita MLA (9a ed.)

Sumich, James L., et al. An Introduction to the Biology of Marine Life. Seventh Edition. McGraw Hill, 1999.