APA-viite

Joel, A. E. (1976). Electronic switching: Central Office systems of the world. Institute of Electrical and Electronics Engineers.

Chicago-tyylinen lähdeviittaus

Joel, Amos E. Electronic Switching: Central Office Systems of the World. New York: Institute of Electrical and Electronics Engineers, 1976.

MLA-viite

Joel, Amos E. Electronic Switching: Central Office Systems of the World. Institute of Electrical and Electronics Engineers, 1976.