Noll, A. M. (1991). Introduction to telephones & telephone systems (2nd ed.). Artech House.
Cita Chicago Style (17a ed.)Noll, A. Michael. Introduction to Telephones & Telephone Systems. 2nd ed. Boston [etc.]: Artech House, 1991.
Cita MLA (9a ed.)Noll, A. Michael. Introduction to Telephones & Telephone Systems. 2nd ed. Artech House, 1991.
Precaución: Estas citas no son 100% exactas.