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6by Jackson, M. L.Get access
Published in Clays and clay minerals (National Conference on Clays and Clay Minerals) (1957)
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7by Jackson, M. L.Get access
Published in Clays and clay minerals (National Conference on Clays and Clay Minerals) (1962)
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11by JACKSON, EDGAR L., SCHINKEL, DALE R.Get access
Published in The Canadian Geographer/Le Géographe canadien (1981)
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