TY  - BOOK
AU  - Jagersten,Gosta
TI  - Evolution of the Metazoan life cycle: a comprehensive theory 
SN  - 0123799503 :
U1  - 593.5 
PY  - 1972///
CY  - London
PB  - Academic Press
KW  - Metazoa
KW  - Evolution (Biology)
KW  - Phylogeny
N1  - Translation from the Swedish
ER  -