TY  - BOOK
AU  - RINGWOOD, A.E.
TI  - COMPOSITION AND PETROLOGY OF THE EARTH`S MANTLE
SN  - 0 07 052932 9
U1  - 551.11 
PY  - 1975///
CY  - New York
PB  - McGraw-Hill Book Company Limited, New York 
ER  -