Palmer, James <br/><br/>
Coal resources and reserves estimates :  some unresolved problems 

<br/><br/> <Donation ORSTOM> 
<br/><br/><label>ISSN: </label>00167606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Charbon<br/>Coal measures<br/>Bassin Hoilleur<br/>Réserve
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis Canada