TY  - BOOK
AU  - Leith,C.K.,1875-1956
TI  - The Economic Aspect of Geology
AV  - TN 
PY  - 2009///
PB  - Project Gutenberg
KW  - Geology, Economic
N1  - Project Gutenberg; Freely available; Electronic text
UR  - http://www.gutenberg.org/etext/27842
UR  - http://www.gutenberg.org/license
ER  -