TY  - BOOK
AU  - Russell, Ricahrd Dana
AU  - Farquhar, R. M.
TI  - LEAD ISOTOPES IN GEOLOGY
U1  - 550.1 
PY  - 1960///
CY  - N. Y.
PB  - Interscience Pub.
KW  - Lead, Isotopes
KW  - Earth, Age
N1  - Includes Bibliography
ER  -