Myers, N.O. <br/><br/>
Portable seismic telemetry equipment for volcanic surveillance / 
by N.O. Myers. 
 - [Port Moresby] :  Geological Survey,  1971. 
 - [6 leaves] :  ill. 
 - Note on investigation ;  no. 71-021 .
 - Note on investigation (Geological Survey of Papua New Guinea) ;  71-021 .
<br/><br/> Investigation no. 69501A. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanic activity prediction.<br/>Telemeter.