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1.
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Paris [France] : United Nations Educational, Scientific and Cultural Organization, 1970.
English | N 314 UNESCO/IGC |
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2.
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Rio De Janeiro, Brazil : UNESCO, 1966.
English | N 21 UNESCO |
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3.
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Paris, France : United Nations Educational, Scientific and Cultural Organization, 1956-
English | N 5 UNESCO.IGC |
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4.
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Geneva, Switzerland : United Nations Educational, Scientific and Cultural Organization, 1952.
English | N 312 UNESCO.R |
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5.
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Paris, France : United Nations Educational, Scientific and Cultural Organization, 1993.
English | C 335 UNESCO.D 1994-1995 |
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6.
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Paris, France : United Nations Educational, Scientific and Cultural Organization, 1992.
English | C 335 UNESCO.A |
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7.
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Paris, France : United Nations Educational, Scientific and Cultural Organization, 1991.
English | C 335 UNESCO.D 1992-1993 |
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8.
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Paris, France : UNESCO, 1989.
English | C 335 UNESCO.P 1990-1995 |
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9.
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Paris, France : United Nations Educational, Scientific and Cultural Organization, 1989.
English | C 335 UNESCO.D 1990-1991 |
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10.
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Paris, France : UNESCO, 1971.
English | N 312 UNESCO. W |
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