TY  - BOOK
AU  - Spencer, Edgar W.
TI  - Introduction to the structure of the Earth
SN  - 0-07-060197-6
U1  - 551.1 21st ed.
PY  - 1977///
CY  - New Delhi : 
PB  - McGraw-Hill Book Company , 
KW  - Earth
KW  - Earth science
KW  - Geology, structural
KW  - Earth - internal structure
N1  - Index: pp 617-40
ER  -