Mostrar 81 - 90 resultats de 120 per cerca 'United Nations Educational Scientific and Cultural Organization', hora de la petició: 0.04sec Refinar resultats
  1. 81

    Out-of school science activities for young people. per Stevens, Roger

    Publicat 1969
    Llibre

    Out-of school science activities for young people.
  2. 82

    Symposium on the oceanography and fisheries resources of the tropical Atlantic, proceeding of the ... Abidjan, Ivory Coast, 20-26 October 1966.

    Publicat 1969
    Llibre

    Symposium on the oceanography and fisheries resources of the tropical Atlantic, proceeding of the ... Abidjan, Ivory Coast, 20-26 October 1966.
  3. 83

    New trends in physics teaching. per Knecht, W.

    Publicat 1968
    Llibre

    New trends in physics teaching.
  4. 84

    Functioning of terrestrial ecosystems at the primary production level proceedings of the Copenhagen Symposium per Eckardt, F. E.

    Publicat 1968
    Llibre

    Functioning of terrestrial ecosystems at the primary production level proceedings of the Copenhagen Symposium
  5. 85

    Directory of meteorite collections and meteorite research.

    Publicat 1968
    Llibre

    Directory of meteorite collections and meteorite research.
  6. 86

    Annual summary of information on natural disasters.

    Publicat 1967
    Llibre

    Annual summary of information on natural disasters.
  7. 87

    An Asian model of educational development perspectives for 1965-1980 .

    Publicat 1966
    Llibre

    An Asian model of educational development perspectives for 1965-1980 .
  8. 88

    Abc of literacy per Burnet, Mary

    Publicat 1965
    Llibre

    Abc of literacy
  9. 89

    World guide to science information and documentation services = Guide mondial des centres de documentation et d'information scientifiques.

    Publicat 1965
    Llibre

    World guide to science information and documentation services = Guide mondial des centres de documentation et d'information scientifiques.
  10. 90

    Methodology of plant eco-physiology per Eckardt, F.E

    Publicat 1965
    Llibre

    Methodology of plant eco-physiology

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