Ashby, John Proudfoot. <br/><br/>
Sliding and topling models of failure in models and jointed rock slopes :  [microform] / 
John Proudfoot Ashby. 
 - [United Kingdom :  Universiti of London],  1971. 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Master of Science) - University of London, 1971. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geophysics.<br/>Geology.