Hunter, J. M., & Thiebaud, M. E. (2003). Telecommunications billing systems: Implementing and upgrading for profitability. McGraw-Hill.
Citace podle Chicago (17th ed.)Hunter, Jane M., a Maud E. Thiebaud. Telecommunications Billing Systems: Implementing and Upgrading for Profitability. New York London: McGraw-Hill, 2003.
Citace podle MLA (8th ed.)Hunter, Jane M., a Maud E. Thiebaud. Telecommunications Billing Systems: Implementing and Upgrading for Profitability. McGraw-Hill, 2003.
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