TY  - BOOK
AU  - Kerkut,G.A.
TI  - Implications of evolution / 
U1  - 575 KER  
PY  - 1960///.
CY  - Oxford : 
PB  - Pergamon Press, 
KW  - Evolution (Biology)
KW  - Primitive Metazoa
N1  - Includes index.
ER  -