APA引文

Enge Eric, S. S. (2011). Art of SEO. Shroff Publisher.

Chicago Style (17th ed.) Citation

Enge Eric, Spencer Stephan. Art of SEO. Mumbai: Shroff Publisher, 2011.

MLA引文

Enge Eric, Spencer Stephan. Art of SEO. Shroff Publisher, 2011.

警告：這些引文格式不一定是100％准確.