Observations on the Geology of the United States of AmericaLubrecht & Cramer, Limited, 1966 - 127 páginas |
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Observations on the Geology of the United States of America William Maclure Vista de fragmentos - 1962 |
Observations on the Geology of the United States of AmericaLubrecht & Cramer, Limited, 1966 - 127 páginas |
Observations on the Geology of the United States of America William Maclure Vista de fragmentos - 1962 |