ebrary, Inc, & Ghys, F. (2003). 3G multimedia network services, accounting, and user profiles. Artech House.
Chicago-viite (17. p.)ebrary, Inc, ja Freddy Ghys. 3G Multimedia Network Services, Accounting, and User Profiles. Boston: Artech House, 2003.
MLA-viite (9. p.)ebrary, Inc, ja Freddy Ghys. 3G Multimedia Network Services, Accounting, and User Profiles. Artech House, 2003.
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