NICHOLS, Thomas C. <br/><br/>
A solid-inclusion Borehole probe to determine Three-Dimensional stress changes at a point in a rock mass / 
by Thomas C. Nichols, John F. Abel and Fitzhugh T. Lee. 
 -- Washington :   United States Government Printing Office,   1968 
 - 28 p. -- 
 (Geological Survey Bulletin  ;  1258-C).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geología<br/>Ingeniería
<br/><br/><label>Universal Decimal Class. No.: </label>55:62