Wyman, Richard <br/><br/>
Challenges of ultradeep drilling 

 - U. S. Geological Survey Professional paper, 1570 .
<br/><br/>bibliogr. p. 215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forage<br/>Géophysique<br/>Géochimie<br/>Forage profond<br/>Perforation<br/>Forage stratigraphique
<br/><br/><label>Subjects--Index Terms: </label>Etats Unis