Butler, J. A. V.  1899- <br/><br/>
Modern biology and its human implications / 
by J. A. V. Butler. 
 - London :  Hodder & Stoughton,  1976. 
 - 120 p. :  illus. ;  22 cm. 
 - Biological science texts .
<br/><br/>Bibliography : p.114-117.-Index. 
<br/><br/><label>ISBN: </label>0340200553 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Philosophy.<br/>Biology--Social aspects.