Kent, P. (2019). SEO for dummies. John Wiley & Sons, Inc.
Cita Chicago (17th ed.)Kent, Peter. SEO for Dummies. Hoboken (N.J.): John Wiley & Sons, Inc, 2019.
Cita MLA (8th ed.)Kent, Peter. SEO for Dummies. John Wiley & Sons, Inc, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.