Omega propagation correction tables :  Greenland 

 - Washington, D.C. :  United States Government Printing Office,  1980 
 - 41 p. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound--Transmission<br/>Sound-waves
<br/><br/><label>Dewey Class. No.: </label>534.20982