Jagersten, Gosta,  1903- <br/><br/>
Evolution of the Metazoan life cycle :  a comprehensive theory / 
G. Jagersten 
 - London :  Academic Press,  1972. 
 - x, 282 p. :  ill. ;  24 cm. 
<br/><br/> Translation of Livscykelns evolution hos Metazoa 
<br/><br/>Includes bibliography 
<br/><br/><label>ISBN: </label>0123799503. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metazoa<br/>Evolution<br/>Phylogeny
<br/><br/><label>Dewey Class. No.: </label>593 JAG