TY  - GEN
AU  - McNamara , Kenneth J. 
TI  - Evolutionary trends
SN  - 812390097X
U1  - 576.8 
PY  - 1990///
CY  - New Delhi
PB  - CBS  
KW  - LIFE OF HISTORY
KW  - INVERTEBRATES
KW  - EVOLUTIONARY
KW  - EVOLUTIONARY CHANGE
KW  - EVOLUTIONARY TRENDS
ER  -