National Geographic :cd-rom 1998-1909  ( 3cd'st+install Me Cd ) 

 - Usa  National Geographic Society  1999 
<br/><br/><label>Subjects--Topical Terms: </label><br/>U:1m73:M88
<br/><br/><label>Dewey Class. No.: </label>U:1m73:M88  / B8