APA (7th ed.) Citation

Herrmann, E. (1997). Teach yourself CGI programming with Perl 5 in a week (2. ed.). Sams.net.

Chicago Style (17th ed.) Citation

Herrmann, Eric. Teach Yourself CGI Programming with Perl 5 in a Week. 2. ed. Indianapolis, Ind: Sams.net, 1997.

MLA (9th ed.) Citation

Herrmann, Eric. Teach Yourself CGI Programming with Perl 5 in a Week. 2. ed. Sams.net, 1997.