Ragan, Donal.M. <br/><br/>
Structural geology  an introduction to geometrical techniques 

 - New York  John Wiley  1968 
 - ix,155 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>GEOLOGY
<br/><br/><label>Dewey Class. No.: </label>551.8  / R13S