Cita APA (7a ed.)
Joel, A. (1976). Electronic switching: Central office systems of the world. IEEE.
Cita Chicago Style (17a ed.)
Joel, A.E. Electronic Switching: Central Office Systems of the World. New York: IEEE, 1976.
Cita MLA (9a ed.)
Joel, A.E. Electronic Switching: Central Office Systems of the World. IEEE, 1976.
Precaución: Estas citas no son 100% exactas.