TY  - BOOK
AU  - Raup David M
AU  -  Stanley Steven M
TI  - Principles of paleontology
SN  - 8123909179 (pbk)
U1  - H6, L11;M5;3-;5 
PY  - 2004///
CY  - New Delhi    
PB  -  CBS Publishers & Distributors     
KW  -  Paleoecology
KW  -  Paleontology
KW  - Geology
N1  - Bibliography 449-465p
ER  -