APA-referens (7:e uppl.)

Herrmann, E. (1999). CGI programming with Perl 5 in a week. Techmedia.

Chicago-referens (17:e uppl.)

Herrmann, Eric. CGI Programming with Perl 5 in a Week. New Delhi: Techmedia, 1999.

MLA-referens (9:e uppl.)

Herrmann, Eric. CGI Programming with Perl 5 in a Week. Techmedia, 1999.