APA-referens

 Alexander, I. (2009).  Discovering requirements: How to specify products and services.  John Wiley and Sons, Ltd., Publication.

Chicago-stil citat

 Alexander, Ian.  Discovering Requirements: How to Specify Products and Services.  John Wiley and Sons, Ltd., Publication, 2009.

MLA-referens

 Alexander, Ian.  Discovering Requirements: How to Specify Products and Services.  John Wiley and Sons, Ltd., Publication, 2009.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.