Ratcliffe, J. A. (1952). The physical principles of wireless ([9th ed., rev.].). Methuen.
Dyfyniad Arddull ChicagoRatcliffe, J. A. The Physical Principles of Wireless. [9th ed., rev.]. London: Methuen, 1952.
Dyfyniad MLARatcliffe, J. A. The Physical Principles of Wireless. [9th ed., rev.]. Methuen, 1952.
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