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1Published 1970Subjects:Book
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2
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3
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4
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5Subjects: “…INVESTIGACION OPERATIVA-AUTOMATIZACION…”
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7
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8
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9
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11Published 1981Subjects: “…INVESTIGACION SOCIAL 2043…”
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13
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14
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16Published 1971Subjects: “…INVESTIGACION AGRARIA 20199…”
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17
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18Subjects: “…INVESTIGACION CIENTIFICA-AUTOMATIZACION…”
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19
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20