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Guidebook to American Values and Our National Parks
註釋"As it celebrates its centennial, the National Park Service now manages more than 400 special places. In these pages, Jonathan Jarvis, the 18th director of the National Park Service, adds a new chapter in the evolution of the national park idea. National parks, he asserts, are expressions of our values. What unites this increasingly diverse system of natural wonderlands and historic sites, in an increasingly diverse nation, are the values we share in common -- and Jarvis provides an impressive list of parks and the values they illuminate" -- Cover p. [4]