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 / 
W. Denne. 
 - 3rd ed. /  revised by A.N. Cockcroft. 
 - Glasgow :  Brown, Son and Ferguson,  1979. 
 - xxi, 165 p., [3]fold leaves :  ill.(some col) ;  22 cm. +  hbk. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0851743323 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Compass.<br/>Magnetic declination.<br/>Nautical instruments
<br/><br/><label>Dewey Class. No.: </label>623.863