Field instrumentation studies of earth Tremors and their geologic environments in Central Utah coal Mining areas / 
by Frank W. Osterwald...[et al.]. 
 -- Washington :   United States Government Printing Office,   1971 
 - 20 p. -- 
 (Geological Survey Professional Paper  ; 693).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sismología<br/>Utah
<br/><br/><label>Universal Decimal Class. No.: </label>550.34(792)