Joel, A. E. (1976). Electronic switching: Central office system of the world. Institute of Electrical and Electronics Engineers.
Citação norma ChicagoJoel, Amos E. Electronic Switching: Central Office System of the World. New York: Institute of Electrical and Electronics Engineers, 1976.
Citação norma MLAJoel, Amos E. Electronic Switching: Central Office System of the World. Institute of Electrical and Electronics Engineers, 1976.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.