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| LEADER |
00000nam a2200000 a 4500 |
| 003 |
AR-LpUBP |
| 005 |
20231114183737.0 |
| 007 |
ta |
| 008 |
091116s1975 cl g 000 0 spa d |
| 040 |
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|a AR-LpUBP
|b spa
|c AR-LpUBP
|
| 100 |
1 |
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|a Schenone, Osvaldo Horacio
|9 63959
|
| 245 |
1 |
0 |
|a Un estudio de costo-beneficio de la conversión de centrales telefónicas manuales a automáticas
|
| 260 |
|
|
|a Santiago :
|b Universidad Católica de Chile,
|c 1975.
|
| 300 |
|
|
|a 6 p. :
|b tablas ;
|c 26 cm.
|
| 490 |
0 |
|
|a Documento de trabajo ;
|v 38
|
| 650 |
|
4 |
|a TELÉFONO (ECONOMÍA)
|9 63960
|
| 700 |
1 |
|
|a Bunster, Jorge
|9 63961
|
| 700 |
1 |
|
|a Baeza, Sergio
|9 63962
|
| 942 |
|
|
|c BK
|
| 952 |
|
|
|0 0
|1 0
|2 udc
|4 0
|6 SE04258
|7 0
|9 109004
|a DUN
|b DUN
|c FG
|d 2023-07-10
|i 457832
|l 0
|o Se-04258
|p DUN457832
|r 2023-07-10 20:47:26
|w 2023-07-10
|y BK
|
| 999 |
|
|
|c 77189
|d 77189
|
| 988 |
|
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|d CLI CLI
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