Cratchley, Kathleen,  <br/><br/>
Systematic biology:  handbook of animal types/ 
Kathleen Cratchley. 
 - Harlow, Essex:  Longman,  1980. 
 - 92pages :  illustrations ;   30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology--Classification.