Grace, Catherine O'Neill    <br/><br/>
Dogs on duty 
by Catherine O'Neill 
 - Washington, D.C.  National Geographic Society  c1988 
 - 104 p.  chiefly ill. (all col.) ;  28 cm. 
 - Books for world explorers . <br/><br/> One folded ill. laid in.  Includes index. 
<br/><br/> Describes the ways in which dogs are bred and trained for such careers as livestock guardian, herder, helper for the disabled, sled-puller, and entertainer. 
<br/><br/><label>ISBN: </label>0870446592 0870446649 (lib. bdg.) : 
<br/><br/><label>LCCN: </label>88015933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Working dogs<br/>Dogs.
<br/><br/><label>Dewey Class. No.: </label>j636.70886 Gra   26