APA (7th ed.) Citation

Cullen, K. E. (2009). Encyclopedia of life science. Facts on file.

Chicago Style (17th ed.) Citation

Cullen, Katherine E. Encyclopedia of Life Science. New York: Facts on file, 2009.

MLA (9th ed.) Citation

Cullen, Katherine E. Encyclopedia of Life Science. Facts on file, 2009.

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