APA (7th ed.) Citation

McGowan, D. J. (1992). The fresh water pond ecosystem. Encyclopedia Britannica Educational Corporation.

Chicago Style (17th ed.) Citation

McGowan, David J. The Fresh Water Pond Ecosystem. Chicago: Encyclopedia Britannica Educational Corporation, 1992.

MLA (9th ed.) Citation

McGowan, David J. The Fresh Water Pond Ecosystem. Encyclopedia Britannica Educational Corporation, 1992.

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