TY  - BOOK
AU  - Ahrens, L. H.
TI  - ORIGIN AND DISTRUBUTION OF THE ELEMENTS
U1  - 551.9 
PY  - 1968///
CY  - Oxford
PB  - Pergamon Press
KW  - Geochemistry
N1  - Internaional Symposium Cosponsored By Unesco And Ivgs And Held At The Headquarters Of Unesco In Paris In May 1967
ER  -