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160906s1981 xxu ||||| eng |
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|a 87869
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|a Sistema de Bibliotecas de Universidad de Costa Rica
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|a eng
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|a 621.33
|b N277ra
|2 00
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| 110 |
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|a National Research Council (Estados Unidos).
|b Transportation Research Board
|e Autor/a
|4 aut
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|a Railroad track structure, electrification, and operations management /
|c Transportation Research Board, National Research Council.
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| 260 |
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|a Washington :
|b National Academy of Sciences,
|c 1981.
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| 300 |
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|a iv, 85 páginas :
|b ilustraciones ;
|c 28 cm.
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| 490 |
0 |
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|a Transportation research record
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| 650 |
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|a VIAS FERREAS
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| 650 |
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|a FERROCARRILES ELECTRICOS
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| 949 |
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|a LQ.-LA b HC
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| 916 |
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|a Registros del LS-2000
|