APA-referens (7:e uppl.)
Barlen, T., & Blankertz, W. (2005). IBM HTTP server (powered by apache): An integrated solution for IBM eServer iSeries servers. IBM, International Technical Support Organization.
Chicago-referens (17:e uppl.)
Barlen, Thomas, och Wilfried Blankertz. IBM HTTP Server (powered by Apache): An Integrated Solution for IBM EServer ISeries Servers. San Jose, CA: IBM, International Technical Support Organization, 2005.
MLA-referens (9:e uppl.)
Barlen, Thomas, och Wilfried Blankertz. IBM HTTP Server (powered by Apache): An Integrated Solution for IBM EServer ISeries Servers. IBM, International Technical Support Organization, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.