TY  - BOOK
AU  - Ahrens L H Ed.
ED  - International conference on origin and distribution of the elements (1963 : London)
TI  - Proceeding on origin and distribution of the elements
T2  - International series of monographs in earth science; 30
U1  - H:(E1:1)p1,N67, K8 
PY  - 1968///
CY  - Oxford
PB  - Pergamon Press        
KW  -  Sedimentary rocks
KW  - Geology
ER  -