Murie, Olaus J.  1889-1963 <br/><br/>
A field guide to animal tracks  / 
text and illustrations by Olaus J. Murie 
 - 2nd ed. 
 - Boston :  Houghton Mifflin ,  1974 
 - xxi , 375 p. :  ill .;  18 cm . 
 - The Peterson field guide series  9 .
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0395199786 
<br/><br/><label>LCCN: </label>74-006294 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal tracks<br/>Zoology--North America<br/>Zoology--Central America<br/>Animals, Habits and behavior of