Hoek, Evert. <br/><br/>
Rock slope engineering / 
[by] Evert Hoek and John Bray. 
 - 2nd rev.ed. 
 - London :  Institution of Mining & Metallurgy,  1977. 
 - 402 p. :  ill. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rock slopes.