APA (7th ed.) Citation

Johnson, L. R. (2004). Encyclopedia of gastroenterology. Academic Press.

Chicago Style (17th ed.) Citation

Johnson, Leonard R. Encyclopedia of Gastroenterology. [San Diego]: Academic Press, 2004.

MLA (8th ed.) Citation

Johnson, Leonard R. Encyclopedia of Gastroenterology. Academic Press, 2004.

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