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| 020 |
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| 040 |
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|a AR-SmtFML
|c AR-SmtFML
|
| 041 |
|
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|a spa
|
| 100 |
1 |
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|a Gonzalez Reyna,Jenaro
|
| 245 |
1 |
0 |
|a Symposium sobre yacimientos de manganeso.3.America
|
| 250 |
|
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| 260 |
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|a Mexico - MEXI
|c 1956
|
| 300 |
|
|
|a v.3
|
| 490 |
|
0 |
|a Congreso Geologico Internacional,20º.Mexico,1956
|
| 650 |
|
4 |
|x Geologia
|x Congresos
|x Yacimientos minerales
|x Manganeso
|x Mineria
|x Minerales
|z Asia y Oceania
|
| 650 |
|
|
|a Geologia
|
| 859 |
|
|
|m 55(061.3)1956 C749sym
|a 84240
|c v.3
|
| 901 |
|
|
|a L.C
|
| 942 |
|
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|c BK
|
| 999 |
|
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|c 7256
|d 7256
|