Zellen, G <br/><br/>
Ontario. Swollen-head Syndrome in Broiler Chickens.  [electronic resource] 

 -  The Canadian veterinary journal = La revue veterinaire canadienne  Mar 1988 
 - 298 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0008-5286