United nations. (2013). A Guide to the Project Management Body of Knowledge project management institute (5.). library of Congress.
Chicago-referens (17:e uppl.)United nations. A Guide to the Project Management Body of Knowledge Project Management Institute. 5. United States of America: library of Congress, 2013.
MLA-referens (9:e uppl.)United nations. A Guide to the Project Management Body of Knowledge Project Management Institute. 5. library of Congress, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.