TY  - BOOK
AU  - Symposium of the Royal Society and the Linnean society(1989)
AU  - Chaloner, W.G., ed.
AU  - Hallam, A., ed.
TI  - Evolution and Extinction: Proceedings
SN  - 0521406463
U1  - 575.01 
PY  - 1989///
CY  - Cambridge
PB  - Cambridge Univ.press
ER  -