Soil Conservation : an address by Charles E. Kellogg,...before the Fifth International Congress of Soil Science, Leopoldville, Belgian Congo, August 1954.
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| Main Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Agriculture, Soil Conservation Serv,
1954.
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