TY  - BOOK
AU  - Krebs, Robert E.
TI  - Basics of earth science
SN  - 9790313319302
U1  - 550 KRE-B 
PY  - 2007///
CY  - New Delhi
PB  - Atlantic Publishers and Distributors
KW  - Earth sciences
KW  - Earth
KW  - Geomagnetism
KW  - Geological time
KW  - Seismology
N1  - includes bibliography and index
ER  -