Clutton-Brock, Juliet. <br/><br/>
Horse power :  a history of the horse and the donkey in human societies / 
Juliet Clutton-Brock. 
 - Cambridge, Mass. :  Harvard University Press,  1992. 
 - 192 p. :  ill. (some col.) ;  26 cm. 
<br/><br/>Includes bibliographical references (p. [184]-188) and index. 
<br/><br/><label>ISBN: </label>067440646X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Horses--History.<br/>Donkeys--History.<br/>Mules--History.<br/>Equus--History.<br/>Animals and civilization.
<br/><br/><label>LC Class. No.: </label>SF283  / .C63 1992 
<br/><br/><label>Dewey Class. No.: </label>636.1