The behavioural biology of dogs/ 
P , Jensen ,. 
 - Oxford Shire ,  Cabi:  X ;:266p.:  2007. 
 - xviii, 702 p. :  ill. ; Pb k, 
<br/><br/><label>ISBN: </label>0521452570 (hb) 
<br/><br/><label>LC Class. No.: </label>SF433.B4  / 2007