Lock, Charles G. Warnford  1853-1909 <br/><br/>
Miner's pocket book :  a reference book for Engineers and others engaged in metalliferous mining/ 
Charles G. Warnford Lock 
 - 4th ed. 
 - London :  E.and F. N. Spon,  1901 
 - viii, 424 p. :  ill. ;  17cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering Geology