Mann,K. H. <br/><br/>
Leeches ,hirudinea ; their structure,physiology,ecology and embrylogy 
K.H.Mann 
 - New York  Pergamon Press  1962 
 - viii,201p. : ill. ; 22cm.- 
 - International series of monographs on pure and applied biology;v.11 .
<br/><br/><label>Dewey Class. No.: </label>595.145  / MAN