Kettlewell, Bernard. <br/><br/>
The evolution of melanism :  The study of a recurring necessity ; with special reference to industrial melanism in the Lepidoptera. 

 - Oxford :  Clarendon Press,  1973. 
<br/><br/>Bibliography: p. [378]-408. 
<br/><br/><label>ISBN: </label>0198573707  L.10.25 ( 
<br/><br/><label>LCCN: </label>73176550 
<br/><br/><label>Nat. Bib. No.: </label>GB*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Melanism.<br/>Industrial melanism.<br/>Lepidoptera.<br/>Insects -- Color.--Insects -- Color.
<br/><br/><label>LC Class. No.: </label>QL767  / .K47 
<br/><br/><label>Dewey Class. No.: </label>595.7/8/041858