Cita APA (7a ed.)
Helmstetter, G. (1997). Increasing hits and selling more on your Web site. Wiley Computer Pub..
Cita Chicago Style (17a ed.)
Helmstetter, Greg. Increasing Hits and Selling More on Your Web Site. New York: Wiley Computer Pub., 1997.
Cita MLA (9a ed.)
Helmstetter, Greg. Increasing Hits and Selling More on Your Web Site. Wiley Computer Pub., 1997.
Precaución: Estas citas no son 100% exactas.