Investigation for coal in the Thai Malaysia border 

 - [19?] 
 - 69 p.  map  30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy--Malaysia<br/>Mineralogy--Thailand<br/>Coal--Malaysia<br/>Coal--Thailand
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Malaysia<br/>Thailand