Laan, H. L. van der. <br/><br/>
The Sierra Leone diamonds :  an economic study covering the years 1952-1961 / 
H. L. Van der Laan. 
 - London :  Oxford University Press ,  1965. 
 - xi, 234p. :  ill.,maps ;  23cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diamonds.<br/>Diamond mines and mining--Sierra Leone.
<br/><br/><label>Dewey Class. No.: </label>338.2782