Turner, Laurence Beddome Wireless telegraphy and telephony : an outline for electrical engineers and others / L.B. Turner - Cambridge : Cambridge University Press, 2013 - x, 195 p. : ill. ; 23 cm. Includes bibliographical references and index ISBN: 9781107629561 (pbk.) Subjects--Topical Terms: Telegraph, WirelessRadioTelephone, Wireless