TY  - BOOK
AU  - Allegre C J Ed.
AU  -  Hart S R Ed.
TI  - Trace elements in igneous petrology
T2  - Developments in petrology; 5
U1  - H21jN31, L8-;1 
PY  - 1970///
CY  - Amsterdam
PB  - Elsevier Scientific Publishing       
KW  -  Igneous rocks
KW  - Geology
ER  -