TY  - BOOK
AU  - Nitecki Matthew H Ed.
ED  - Symposium on biotic crises in ecological and evolutionary time (1980 : Chicago)
TI  - Proceeding of biotic crises in ecological and evolutionary time
U1  - G:5p73,N80, M1 
PY  - 1980///
CY  - New York    
PB  -  Academic Press       
KW  - Ecology
ER  -