Bibliography of North American geology, 1949
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Geology topics
Emma Mertins Thom
Publications and source records attributed to Emma Mertins Thom.
Bibliography of North American geology, 1948
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Bibliography of North American geology, 1946 and 1947
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Bibliography of North American geology, 1944 and 1945
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Bibliography of North American geology, 1942 and 1943
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Bibliography of North American geology, 1929-1939
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Bibliography of North American geology for 1940 and 1941
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Bibliography of North American geology for 1935 and 1936
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Bibliography of North American geology, 1933 and 1934
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