Hanock, H.E. <br/><br/>
Wireless at Sea: The Frist Fifty Years 

 - London,  Marconi International Marine Communication Company,  1950, 
 - xv,225p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The Sea<br/>Safety at Sea
<br/><br/><label>Dewey Class. No.: </label>621.396  / HAN