National geographic :  Historia : Gladiadores .  / 
National Geographic 
 - Washinpton, United States :  Gilbert Hovey Grosvenor,  1999 
 - 92 p. :  il. ;  21 cm. 
 - Colección National Gegraphic. Vol. 99 No.2, August 2012 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>NATIONAL GEOGRAPHIC
<br/><br/><label>Dewey Class. No.: </label> / N277