APA (7th ed.) Citation

Lawrence, J. M., & Guzman, O. (2004). Sea urchins: Fisheries and ecology. DEStech Publication, Inc.

Chicago Style (17th ed.) Citation

Lawrence, John M., and Oscar Guzman. Sea Urchins: Fisheries and Ecology. Pennsylvania, USA: DEStech Publication, Inc, 2004.

MLA (9th ed.) Citation

Lawrence, John M., and Oscar Guzman. Sea Urchins: Fisheries and Ecology. DEStech Publication, Inc, 2004.