Denne, W <br/><br/>
Magnetic compass deviation and correction    a manual of the theory of the deviations and mechanical correction of magnetic compasses in ships / by W. Denne.     

 - 3rd ed. 
 -  Glasgow : Brown, Son & Ferguson  1979 
<br/><br/><label>ISBN: </label>851743323 
<br/><br/><label>LC Class. No.: </label>VK 577 .D46 1979 
<br/><br/><label>National Library of Medicine Call No.: </label>VK 577 .D46 1979