Sawyer, Roy T. <br/><br/>
Leech biology and behaviour 
Roy T. Sawyer 
 - Oxford  Clarendon Press  1986 
 - v. : ill. ; 24 cm. 
<br/><br/> v.I- Anatomy, physiology, and behaviour. v.II- Feeding biology, ecology, and systematics. v.III- Bibliography 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0198573774 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Leeches--Collected works