APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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