Treworgy, C. G <br/><br/>
Desirable characteristics of a state-wide evaluation of coal resources 

<br/><br/> <Donation ORSTOM> 
<br/><br/>bibliogr. p. 577 
<br/><br/><label>ISSN: </label>00167606 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Charbon<br/>Coal measures<br/>Evaluation gîte<br/>Etude faisabilité<br/>Gisement potentiel
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis