Ethology of farm animals  a comprehensive study of the behavioural features of the common farm animals 
A.F. Froser 
 - Amsterdam  Elsevier North-Holland  1985 
 - 500p. 30cm 
 - World animal science. A, Basic information  5 .
<br/><br/> Includes indexes 
<br/><br/><label>ISBN: </label>0444423591 
<br/><br/><label>LCCN: </label>84-8031 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Livestock--Behavior