TY  - BOOK
AU  - Ross,Robert M..
AU  - Allmon,Warren D..
TI  - Causes of evolution / 
SN  - 0226728242
U1  - 576 
PY  - 1990///
CY  - Chicago : 
PB  - University of Chicago Press , 
KW  - EVOLUTION
KW  - PALEONTOLOGY
N1  - NULL
ER  -