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|a Seminario sobre seguridad social. México, 1974
|9 63246
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| 245 |
1 |
0 |
|a Trabajos presentados
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| 260 |
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|c 1976.
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| 300 |
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|a 292 p. ;
|c 24 cm.
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| 490 |
0 |
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|a México. Secretaría de la Presidencia. Dirección general de estudios administrativos. Colec. Seminarios ;
|v 2
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| 650 |
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4 |
|a SEGUROS SOCIALES-CONGRESOS, CONFERENCIAS, ETC.
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| 942 |
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|d CLI CLI
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