Langman, Rodney E. <br/><br/>
The Immune system : Evolutionary principles guide our understanding of this complex biological defense system 

 - San Diego:  Academic Press Inc.,  1989 
 - xlvi, 209 p.:  ill. ;  23cm 
<br/><br/><label>ISBN: </label>012436585X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Immune system<br/>Immunity