Guide to the national parks of the United States.

Dades bibliogràfiques
Autor corporatiu:	National Geographic Society (U.S.)
Format:	Llibre
Idioma:	anglès
Publicat:	Washington, D.C., Enfield National Geographic Publishers Group UK [distributor] 2012.
Edició:	7th edition.
Matèries:	National parks and reserves > United States > Guidebooks. United States > Guidebooks.