Wheatley, J. J. (1999). World telecommunications economics. Institution of Electrical Engineers.
Chicago-viite (17. p.)Wheatley, Jeffery J. World Telecommunications Economics. London: Institution of Electrical Engineers, 1999.
MLA-viite (8. p.)Wheatley, Jeffery J. World Telecommunications Economics. Institution of Electrical Engineers, 1999.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.