Cita APA (7a ed.)

Ward, A. A. (2017). The SEO battlefield: Winning strategies for search marketing programs (First edition.). O'Reilly Media.

Cita Chicago Style (17a ed.)

Ward, Anne Ahola. The SEO Battlefield: Winning Strategies for Search Marketing Programs. First edition. Sebastopol, CA: O'Reilly Media, 2017.

Cita MLA (8a ed.)

Ward, Anne Ahola. The SEO Battlefield: Winning Strategies for Search Marketing Programs. First edition. O'Reilly Media, 2017.