The conservation of our natural resources
Series: Its Conservation bulletin -- 39; Conservation bulletin (Washington, D.C.) -- 39
Publisher: United States. Dept. of the Interior : for sale by the Supt. of Docs, U. S. Govt. Print. Off.
Published: 1957
Place of publication: Washington
Language: eng
Number of pages: 27
Subjects: Conservation of natural resources
Other titles: Century of conservation.
Notes: Published in 1950 under title: A century of conservation.

"Revised May 1957."