Grids and magnetic declinations ... 

 - [Washington,  1945] 
 - 89 p.  illus., fold. maps.  27 cm. 
 - Its A.M.S. memorandum  no. 425 .
 - United States.  Army Map Service.  Memorandum ;  no. 425.  4th ed. .
<br/><br/> "Amendment no. 1" ([2] p.) inserted. 
<br/><br/><label>LCCN: </label>map47000380  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Military maps.<br/>Geomagnetism.
<br/><br/><label>LC Class. No.: </label>UG470  / .U5 no. 425