Durkin, John. <br/><br/>
Evaluation of the seismic system for locating trapped miners / 
by John Durkin and Roy J. Greenfield. 
 - [Washington, D.C.?] :  U.S. Dept. of the Interior, Bureau of Mines,  1981. 
 - iii, 55 p. :  ill. ;  27 cm. 
 - Report of investigations / Bureau of Mines ;  8567 .
 - Report of investigations (United States. Bureau of Mines) ;  8567. .
<br/><br/>Bibliography: p. 48-50. 
<br/><br/><label>LCCN: </label>81002170  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine rescue work--Equipment and supplies.<br/>Seismometers.
<br/><br/><label>LC Class. No.: </label>TN23  TN297  / .U43 no. 8567 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.8