TY  - BOOK
AU  - Wyckoff,Jerome
AU  - Harvey,A.P.
TI  - Secrets of the Earth
U1  - 550 
PY  - 1968///
CY  - [Place of publication Not Identified] : 
PB  - Paul Hamlyn, 
KW  - Earth sciences
KW  - Earth
KW  - Rocks
KW  - Groundwater
KW  - Lakes
ER  -