Conservation of natural resources (of the United States) /
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
N.Y. :
Wiley,
1950.
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| Subjects: |
| Item Description: | A rev. version of, Our national resources and their conservation. 2nd ed. 1939. Ed. by A.E.Parkins and J.R.Whitaker. |
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