Murie, Olaus Johan ,1889-1963. <br/><br/>
A field guide to animal tracks 
Text and illus. by Olaus J. Murie. 
 - 2d ed. 
 -  Houghton Mifflin Boston  1974  1974 
 - p. cm. 
 - The Peterson field guide series  9 .
<br/><br/> Bibliography: p. 
<br/><br/><label>ISBN: </label>0395080371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal tracks.<br/>Zoology -- North America.<br/>Zoology -- Central America.--QL
<br/><br/><label>LC Class. No.: </label>QL768.M87 1974