Omega propagation correction tabels 

 - Washington :  United States Government Printing Office,  1981 
 - Various pagings ;  30 cm. 
<br/><br/> Cover title 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Propagation of sound<br/>Sound-waves
<br/><br/><label>Dewey Class. No.: </label>534.2