National parks for the 21st century
Subtitle: the Vail agenda : report and recommendations to the Director of the National Park Service from the steering committee of the 75th anniversary symposium.
Contributors: United States. National Park Service.
Series: National Park Service document ;; D-726; NPS document ;; no. 726 D.
Publisher: National Park Service
Published: 1992
Place of publication: [Washington D.C.]
Language: eng
Number of pages: 135
Subjects: United States. National Park Service -- Congresses.; National parks and reserves -- United States -- Congresses.