Oldroyd, Harold. <br/><br/>
Diptera.  I, Introduction and key to families.  I, Introduction and key to families. 

 - 3rd ed., rewritten and enl. 
 - London :  Royal Entomological Society,  1970. 
 - Handbooks for the identification of British insects. Royal Entomological Society ;  v. 9, pt. 1 .
 - Handbooks for the identification of British insects ;  v. 9, pt. 1. .
<br/><br/> Cover-title. 
<br/><br/>Bibliography: p. 91-95. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects -- Great Britain.--Insects -- Great Britain.