APA (7th ed.) Citation

Grappone, J., & Couzin, G. (2008). Search engine optimization: An hour a day (2nd ed.). Wiley Publishing.

Chicago Style (17th ed.) Citation

Grappone, Jennifer, and Gradiva Couzin. Search Engine Optimization: An Hour a Day. 2nd ed. Indianapolis, India: Wiley Publishing, 2008.

MLA (9th ed.) Citation

Grappone, Jennifer, and Gradiva Couzin. Search Engine Optimization: An Hour a Day. 2nd ed. Wiley Publishing, 2008.