Ragan, Donal M.  . <br/><br/>
Structural geology an introduction to geometrical techniques /  
by D.M. Ragan. 
 - 4th ed /  
 - Cambridge :   Cambridge University Press ,   2009 
 - 602p :  
<br/><br/><label>ISBN: </label>978-0521-74583-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H3  / P9