Cita APA (7a ed.)

Enge, E., Spencer, S. M., & Stricchiola, J. (2022). The Art of SEO, 4th Edition (Fourth edition.). O'Reilly Media, Inc.

Cita Chicago Style (17a ed.)

Enge, Eric, Stephan M. Spencer, y Jessie Stricchiola. The Art of SEO, 4th Edition. Fourth edition. Sebastopol, CA: O'Reilly Media, Inc, 2022.

Cita MLA (9a ed.)

Enge, Eric, et al. The Art of SEO, 4th Edition. Fourth edition. O'Reilly Media, Inc, 2022.