Swinburne, Stephen R. <br/><br/>
Once a wolf :  how wildlife biologists fought to bring back the gray wolf / 
Stephen R. Swinburne ; with photographs by Jim Brandenburg. 
 - Boston, MA :  Houghton Mifflin,  1999. 
 - p. cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/> Surveys the history of the troubled relationship between wolves and humans, examines the view that these predators are a valuable part of the ecosystem, and describes the conservation movement to restore them to the wild. 
<br/><br/><label>ISBN: </label>0-395-89827-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Endangered species<br/>Wildlife reintroduction<br/>Wolves