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|a AR-SmtFML
|c AR-SmtFML
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| 041 |
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|a spa
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| 100 |
1 |
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|a Congreso Geologico Internacional,20º.Mexico,1956
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|a Directorio de geologos del mundo invitados a concurrir al 20º Congreso Geol.Internacional
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| 250 |
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| 260 |
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|a Mexico - MEXI
|c 1956
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| 300 |
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|a 1111p.
|c 22cm
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| 490 |
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0 |
|a Congreso Geologico Internacional,20º. Mexico,1956
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| 650 |
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4 |
|x Geologia
|x Directorio
|x Geologos
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| 650 |
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|a Geologia
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| 859 |
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|m 55(061.3)1956 C749d
|a 84564
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| 901 |
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|a L.C
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| 942 |
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|c BK
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|c 5954
|d 5954
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