Parker,George Howard <br/><br/>
Animal colour changes and their neurohumours 

 - Cambridge  At the university press  1948 
 - vii, 377p. : ill ; 22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals
<br/><br/><label>Universal Decimal Class. No.: </label>13  / JJ21