Tetley, L. <br/><br/>
Electronic aids to navigation :  position fixing / 
L. Tetley, D. Calcutt. 
 - London :  Edward Arnold,  1991. 
 - ix, 386 p. :  ill., maps. 
<br/><br/><label>ISBN: </label>0340543809 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics in navigation.<br/>Navigation--Equipment and supplies.<br/>Navigation--Safety measures.