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- C. D. Jeffries
- Clays and Clay Minerals: Edited by Ada Swineford and Norman Plummet. National Academy of Sciences, National Research Council Publ. 327. VIII + 498. index. (Proc. 2nd Natl. Conference on Clays and Clay Minerals, Columbia, Mo., Oct. 15–17, 1953). Washington, D. C. 1955. $4.00
Agron J 1956 48: 144
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