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Coal resources of the Americas : selected papers
edited by Frank E. Kottlowski, Aureal T. ...
Bok Engelsk 1978
Measuring stratigraphic sections
Kottlowski, Frank Edward
Bok Engelsk 1965
Mosaic of New Mexico's scenery, rocks, and history : a brief guide
Edited by Paige W. Christiansen and Frank...
Bok Engelsk 1964