Sinclair, John,  1900-  <br/><br/>
Quarrying, opencast and alluvial mining / 
John Sinclair. 
 - Amsterdam :  Elsevier North-Holland,  1969. 
 - vii, 375 pages :  illustrations ;  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>1444200401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Strip mining.<br/>Quarries and quarrying.<br/>Hydraulic mining.