Atkinson, J. <br/><br/>
Telephony :  A detailed expositionof the telephone exchange systems of the british post office/ 
J. Atkinson  
 - London :  Pitman Publishing,  1948 
<br/><br/><label>ISBN: </label>0273431803 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone
<br/><br/><label>Dewey Class. No.: </label>621.385  / ATK