Ragan, Donal M, <br/><br/>
Structural geology:  an introduction to geometrical techniques/ 
Donal M. Ragan. 
 - New York:  John Wiley & Sons,  1968. 
 - ix, 166 pages :  illustrations ;  28 cm. 
<br/><br/>Bibliography: pages 150-152. 
<br/><br/><label>ISBN: </label>0471704806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Structural.