TY  - BOOK
AU  - Over, D.J.  .
TI  - Understanding late devonian and permian-triassic biotic and climate events towards and integrated approach / 
SN  - 0-444-52127-5
U1  - H 
PY  - 2005///
CY  - Oxford : 
PB  - Elsevier Ltd. , 
KW  - Permian-Triassic biotic
ER  -