APA (7th ed.) Citation

Clay, B., Esparza, S., & Sullivan, D. (2009). Search engine optimization all-in-one for dummies (1st edition.). Wiley.

Chicago Style (17th ed.) Citation

Clay, Bruce, Susan Esparza, and Danny Sullivan. Search Engine Optimization All-in-one for Dummies. 1st edition. Hoboken, New Jersey: Wiley, 2009.

MLA (9th ed.) Citation

Clay, Bruce, et al. Search Engine Optimization All-in-one for Dummies. 1st edition. Wiley, 2009.