Cita APA (7th ed.)

ebrary, Inc, & Ghys, F. (2003). 3G multimedia network services, accounting, and user profiles. Artech House.

Cita Chicago (17th ed.)

ebrary, Inc, i Freddy Ghys. 3G Multimedia Network Services, Accounting, and User Profiles. Boston: Artech House, 2003.

Cita MLA (9th ed.)

ebrary, Inc, i Freddy Ghys. 3G Multimedia Network Services, Accounting, and User Profiles. Artech House, 2003.