Encyclopedia of telecommunications 
edited by Fritz E.Froehlish and Allen Kent 
 - New York  Marcel Decker  c1991 
 - v.: ill., tables.;  26cm. 
<br/><br/> Contents : v.1 : Access charges in the USA to basic of digital communication,edited by Fritz E. Froehlich and Allen Kent  v. 2. : Batteries to codes-telecommunications., edited by Fritz E. Froehlich and Allen Kent  v. 3. : Codes for the prevention of errors to commonications frequency standards; edited by Fritz E. Froehlich and Allen Kent 
<br/><br/><label>ISBN: </label>0824729005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication-Encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>R  / 384.03 ENC