APA (7th ed.) Citation

Gray, L. (2013). Giant Pacific octopus: The world's largest octopus. Bearport Publishing.

Chicago Style (17th ed.) Citation

Gray, Leon. Giant Pacific Octopus: The World's Largest Octopus. New York, New York: Bearport Publishing, 2013.

MLA (9th ed.) Citation

Gray, Leon. Giant Pacific Octopus: The World's Largest Octopus. Bearport Publishing, 2013.

Warning: These citations may not always be 100% accurate.