Beringer, J. J. <br/><br/>
Further contributed remarks on the physical condition of cassiterite in cornish mill products. 

 - Londres-XXK :   The Institution of Mining and Metallurgy,   1915. 
 - p. 13-19 :   maps. 
 - Mensual 
 - No. 134(Nov.1915) 
 - Bulletin of the Institution of Mining and Metallurgy,  ;   No. 134 .
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