National geographic explorer [electronic resource].
- Washington, DC : National Geographic Society
- Six issues a year (during school year)
- Vol. 2, no. 1 (Sept. 2002)-
Accompanied by a teacher's guide which precedes the issue.
License restrictions may limit access.
= National geographic explorer
= Nat'l. geogr. explor.
National Geographic Society, 1145 17th St., N.W., Washington, DC 20036-4688