Cita APA (7th ed.)

Hunter, J. M., & Thiebaud, M. E. (2003). Telecommunications billing systems: Implementing and upgrading for profitability. McGraw-Hill.

Cita Chicago (17th ed.)

Hunter, Jane M., i Maud E. Thiebaud. Telecommunications Billing Systems: Implementing and Upgrading for Profitability. New York London: McGraw-Hill, 2003.

Cita MLA (8th ed.)

Hunter, Jane M., i Maud E. Thiebaud. Telecommunications Billing Systems: Implementing and Upgrading for Profitability. McGraw-Hill, 2003.