Sullivan, George. <br/><br/>
The great running backs. 

 - New York :  Putnam,  1972. 
 - 253 p. :  ill. 
<br/><br/><label>ISBN: </label>0399110267 
<br/><br/><label>LCCN: </label>72079531 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Football--Biography.
<br/><br/><label>Dewey Class. No.: </label>796.332