File:1939 Albrecht paper.pdf
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1939_Albrecht_paper.pdf (file size: 211 KB, MIME type: application/pdf)
Wm. A. Albrecht, Variable Levels of Biological Activity in Sanborn Field after Fifty Years of Treatment, 1939.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 05:26, 21 April 2012 | (211 KB) | Jill Richardson (talk | contribs) | Wm. A. Albrecht, Variable Levels of Biological Activity in Sanborn Field after Fifty Years of Treatment, 1939. |
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