Willbourn, E.S. <br/><br/>
Notes on the occurences of lode tin - ore in the Kinta Valley 
E.S. Willbourn. 
 -  1923 
 - 25 p.  ill.  30 cm 
<br/><br/> September, 1923 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Economic<br/>Rocks, Igneous
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Kinta Valley (Perak)