Contour-trenches control floods and erosion on range lands /
| Corporate Author: | |
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| Other Authors: | , |
| Format: | Book |
| Language: | English |
| Published: |
Washington :
U. S. Govt. Print. Off,
1937.
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| Series: | U. S. Civilian Conservation Corps. Forestry publication no. 4
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| Subjects: |
| Item Description: | At head of title: U. S. Emergency conservation work. |
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| Physical Description: | iii, 22 pages : illustrations, 10 plates on 5 leaves, diagram ; 24 cm. |