Cita APA (7a ed.)
Grensing-Pophal, L. (2010). SEO and the Business of Content. EContent, 33(8), 16-21.
Cita Chicago Style (17a ed.)
Grensing-Pophal, Lin. "SEO and the Business of Content." EContent 33, no. 8 (2010): 16-21.
Cita MLA (9a ed.)
Grensing-Pophal, Lin. "SEO and the Business of Content." EContent, vol. 33, no. 8, 2010, pp. 16-21.
Precaución: Estas citas no son 100% exactas.