National Conference on Clays and Clay Minerals <7. ; 1958
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Nature
Title
BNI subject
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Physical description
Date
Place of publication
Village
Tongue
Source
ID
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Author : National Conference on Clays and Clay Minerals <4. ; 1955
Year : 1956
Author : National Conference on Clays and Clay Minerals <10. ; 1961
Year : 1963
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