Maple, Terry. <br/><br/>
Zoo animal welfare / 
Terry L. Maple, Bonnie M. Perdue. 
 - xx, 209 pages :  color Illustrations ;  25 cm. 
 - Animal welfare,  14.  1572-7408 ; .
 - Animal welfare ;  14. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9783642359545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal welfare.<br/>Zoo animals--Environmental enrichment.<br/>Animal Welfare.<br/>Animals, Zoo.