TY  - BOOK
AU  - Walther, John V  .
TI  - Essentials of geochemistry / 
SN  - 0-7637-2642-7
U1  - HogE 
PY  - 2005///
CY  - Sudbury : 
PB  - Jones and Bartlett Publishers , 
KW  - Geochemistry
ER  -