Health and productivity in dairy cattle / 
prepared by the course team. 
 - Milton Keynes :  The Open University,  1984. 
 - viii, 156 p. ;  24 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dairy cattle--Breeding.<br/>The Open University.