McDonald, Jerry N. <br/><br/>
North American bison :  their classification and evolution / 
Jerry N. McDonald 
 - Berkeley, Calif. :  University of California Press,  1981 
 - 316 p, 16 p of plates :  ill maps ;  26 cm. 
<br/><br/>Bibliography: p286-309. - Includes index 
<br/><br/><label>ISBN: </label>0520040023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bison, American--Classification<br/>Bison, American--Evolution<br/>Mammals--North America--Classification<br/>Mammals--Classification<br/>Mammals--North America--Evolution<br/>Mammals--Evolution