TY  - BOOK
AU  - Gregor,C.Bryan
TI  - Chemical cycles in the evolution of the earth
SN  - 0471089117
PY  - 1988///
CY  - New York
PB  - John Wiley & Sons
KW  - Geochemistry
KW  - Congresses
KW  - Geology
KW  - Periodicity
N1  - Based on discussion held in the forum of the Work Group on Geochemical Cycles
ER  -