Spelderholt Institute for Poultry Research. Berkbergern, Netherlands 

 - Berkbergen :  The Institute,  (1981?) 
 - 16 p.  : ilus. 
<br/><br/><label>LCCN: </label>57801 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Avicultura--Investigación.