Hamman, W. D. <br/><br/>
Practical geology and mineralogy  a short course in mining science, designed for the student, miner, prospectorand ... plain facts for plain people 
by W. D. Hamman 
 - South Pasadena  Way's Pocket Smelter  1911 
 - 234 p. ; 19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology