एपीए उद्धरण

Helmstetter, G. (1997). Increasing hits and selling more on your Web site. WILEY.

शिकागो स्टाइल उद्धरण

Helmstetter, Greg. Increasing Hits and Selling More On Your Web Site. WILEY, 1997.

एमएलए उद्धरण

Helmstetter, Greg. Increasing Hits and Selling More On Your Web Site. WILEY, 1997.