The ABC code fifth edition, improved with the verbation supplement code  Part IV  The ABC code/ 
compiled by W. Clausen-Theu 
 - 5th ed. 
 - New York:  Central Code Bureau,  c1923 
 - 1478 p.;  23 cm. 
<br/><br/><label>ISBN: </label> Rs. 75.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telegraph<br/>Telecommunication
<br/><br/><label>Dewey Class. No.: </label>621.38222