APA-viite (7. p.)
Brewster, E. (2014). Business relationship manager: Careers in IT service management. BCS.
Chicago-viite (17. p.)
Brewster, Ernest. Business Relationship Manager: Careers in IT Service Management. Swindon, England: BCS, 2014.
MLA-viite (9. p.)
Brewster, Ernest. Business Relationship Manager: Careers in IT Service Management. BCS, 2014.
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