Shirley, M W <br/><br/>
Eimeria necatrix: selection and characteristics of a precocious (and attenuated) line.  [electronic resource] 

 -  Avian pathology : journal of the W.V.P.A  Oct 1984 
 - 657-68 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0307-9457 
<br/><br/><label>Standard No.: </label>10.1080/03079458408418564  doi