Media type: E-Article Title: The Growth of Our National Park System Contributor: Du Puy, William Atherton Published: University of California Press, 1929 Published in: Current History, 30 (1929) 5, Seite 889-894 Language: English DOI: 10.1525/curh.1929.30.5.889 ISSN: 0011-3530; 1944-785X Keywords: History Origination: Footnote: