Conservation and the gospel of efficiency
Subtitle: the progressive conservation movement, 1890-1920
By: by Samuel P. Hays.
Edition: [College ed.] With a new pref. by the author.
Series: Atheneum, 139
Publisher: Atheneum
Published: 1969
Place of publication: New York
Language: eng
Number of pages: 297
Subjects: Conservation of natural resources -- United States -- History.; Environmental policy -- United States -- History.
Notes: Bibliography: p. [277]-282.