Redmill, Felix,  1944- <br/><br/>
SPC digital telephone exchanger / 
F. J. Redmill and A. R. Valdar 
 - Rev ed. 
 - London :  Peter Peregrinus,  1994 
 - xii, 521p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>0863413013  RM169.12 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital telephone systems<br/>Telephone switching systems, Electronic