APA (7th ed.) Citation

O'Brien, M., Crossley, R., & Karlson, K. (2006). The shorebird guide. Houghton Mifflin.

Chicago Style (17th ed.) Citation

O'Brien, Michael, Richard Crossley, and Kevin Karlson. The Shorebird Guide. Boston: Houghton Mifflin, 2006.

MLA (9th ed.) Citation

O'Brien, Michael, et al. The Shorebird Guide. Houghton Mifflin, 2006.

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