(2015). The Art of SEO: Mastering Search Engine Optimization / Eric Enge, Stephan Spencer, and Jessie C. Stricchiola.
Citazione stile Chigago Style (17a edizione)The Art of SEO: Mastering Search Engine Optimization / Eric Enge, Stephan Spencer, and Jessie C. Stricchiola. 2015.
Citatione MLA (9a ed.)The Art of SEO: Mastering Search Engine Optimization / Eric Enge, Stephan Spencer, and Jessie C. Stricchiola. 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.