Foundations of Structrual Geology,/ 
Park,R.G. 
 - 3rd Edition 
 - London:  Routledge,  1997. 
 - 202 
<br/><br/><label>ISBN: </label>074875802X 
<br/><br/><label>Dewey Class. No.: </label>551.8  / PAR/F