TY  - BOOK
AU  - Gutenberg,Beno
TI  - Internal constitution of the earth
SN  - 9486604144
PY  - 1951///
CY  - New York
PB  - Dover Pub. Inc.
KW  - Earth
KW  - Internal Structure
N1  - 'References' at the end of each chapter except the last
ER  -