Stärk, K D <br/><br/>
Risk factors for respiratory diseases in New Zealand pig herds.  [electronic resource] 

 -  New Zealand veterinary journal  Feb 1998 
 - 3-10 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0048-0169 
<br/><br/><label>Standard No.: </label>10.1080/00480169.1998.36043  doi