Sinclair John <br/><br/>
Quarrying opencast and alluvial mining 
by Sinclair John 
 -  1969 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>67266 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Building engineering
<br/><br/><label>Dewey Class. No.: </label>D3:H, K9;1