Ribes, Bruno <br/><br/>
Biology and ethics: reflections inspired by a Unesco symposium/ Bruno Ribes. 

 - Paris : UNESCO, 1978. 
 - 202 p. ; 
 - Insights; 2. .
<br/><br/><label>ISBN: </label>9231015680. 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>574.6: 172 (100) =20 RIB.