Coal explorer  [electronic resource]. 

 - Mumbai, India :  Petrosil Group 
 - Semimonthly 
<br/><br/> License restrictions may limit access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining--Periodicals.<br/>Coal--Periodicals.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic journals.
<br/><br/><label>LC Class. No.: </label>TN799.9