by Ries, Heinrich , Heinrich Ries
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Economic geology
Building stones and clay-products
Clay and shale deposits of the western p...
Clays
Economic geology of the United States
Elements of engineering geology
Kokuritsu Kokkai Toshokan shozō Meijiki ...
Cosmos
Paekche ŭi kŏnchʻuk kwa tʻomok
I wonder why the sea is salty and other ...
Globalization and diversity
United Kingdom minerals yearbook