Cita APA (7a ed.)

Clay, B. (2015). Search engine optimization all-in-one for dummies (3rd ed.). John Wiley & Sons.

Cita Chicago Style (17a ed.)

Clay, Bruce. Search Engine Optimization All-in-one for Dummies. 3rd ed. Hoboken, NJ: John Wiley & Sons, 2015.

Cita MLA (8a ed.)

Clay, Bruce. Search Engine Optimization All-in-one for Dummies. 3rd ed. John Wiley & Sons, 2015.