Devereux Carter, M <br/><br/>
The national coal resources data system :  a status report 

<br/><br/> <Donation ORSTOM> 
<br/><br/><label>ISSN: </label>00167606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal measures<br/>Bassin houiller<br/>Gisement potentiel<br/>Couche charbon<br/>Carte houillère<br/>Evaluation gîte<br/>Isopaque
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis