Shaw, J. J.  <br/><br/>
Milne-Shaw seismograph  handbook 
J. J. Shaw 
 - 32p.  illus 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Seismograph
<br/><br/><label>Universal Decimal Class. No.: </label>534.647(035)  / SHA