Jolley E. H. <br/><br/>
Introduction to telepohone and telegraphy 

 - Allahabad  Wheeler And Co. Pvt. Ltd.  1984 
 - 413p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ETC
<br/><br/><label>Dewey Class. No.: </label>621385