Ridley, Mark. <br/><br/>
Evolution and classification/ 
Mark Ridley. 
 - New York :  Longman,  1986. 
 - 201 p. :  ill.  
<br/><br/>Includes bibliography. 
<br/><br/><label>ISBN: </label>0285444977 0582444977 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cladistic analysis.<br/>Evolution.