TY  - BOOK
AU  - Garrels R M
AU  -  Hunt C
AU  -  Mackenzie F T
TI  - Chemical cyles and the global environment assessing human ifluences
U1  - H:(E), L51 
PY  - 1975///
CY  - California
PB  - William Kaufmann        
KW  -  Geochemistry
KW  - Geology
ER  -