TY  - BOOK
AU  - Dasgupta,Amal
TI  - Introduction to earth science / 
SN  - 8187567635
U1  - 550 21st
PY  - 2006///
CY  - Kolkata : 
PB  - The World Press , 
KW  - EARTH SCIENCE
N1  - Includes bibliographical references and index
ER  -