America's hidden wilderness lands of seclusion

Sonraí bibleagrafaíochta
Údar corparáideach:	National Geographic Society (U.S.). Special Publications Division
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Washington, D.C. The Society c1988.
Ábhair:	Wilderness areas > North America.