Cockin, T. H. <br/><br/>
An elementary classbook of practical coal-mining / 
T. H. Cockin 
 - 2nd rev. ed. 
 - London :  [s.n.],  1906 
 -  map ;  8 degree. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering Geology<br/>Geophysics<br/>Mining engineering
<br/><br/><label>Dewey Class. No.: </label>131