Fraser, Andrew Ferguson. <br/><br/>
Farm animal behaviour and welfare /  
by A.F. Fraser, D.M. Broom. 
 - 3rd ed. 
 - Wallingford :    English Language Book Society,    c1990. 
<br/><br/><label>ISBN: </label>0702011355 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Livestock -- Behavior.<br/> Animal welfare.
<br/><br/><label>Dewey Class. No.: </label>636