Prouhet, J.-P <br/><br/>
L'industrie extractive au Portugal - Production et structure 

<br/><br/> <Donation ORSTOM> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matières premières<br/>Industrie extractive<br/>Charbon<br/>Fer substance<br/>Pyrite<br/>Substances utiles<br/>Substances non-métalliques<br/>Co–t<br/>Panorama minier
<br/><br/><label>Subjects--Index Terms: </label>Portugal