Variation in the chemical composition of soils / by W.O. Robinson, L.A. Steinkoenig and William H. Fry.
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| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Agriculture,
1917.
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| Series: | Bulletin of the U.S. Department of Agriculture ;
no. 551. |
| Subjects: |