De Boer, G F <br/><br/>
Studies in epidemiology of maedi/visna in sheep.  [electronic resource] 

 -  Research in veterinary science  Mar 1979 
 - 202-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0034-5288 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Complement Fixation Tests<br/>Female<br/>Metastrongyloidea--microbiology<br/>Pneumonia, Progressive Interstitial, of Sheep--epidemiology<br/>Sheep<br/>Visna-maedi virus