Mostrando 3 resultados

archival descriptions
Publications, documents and records on UNESCO Item
Imprimir vista previa Hierarchy Ver :
Annotated bibliography of UNESCO publications and documents dealing with space communication, 1953-1970
Annotated bibliography of UNESCO publications and documents dealing with space communication, 1953-1970
Annotated bibliography of United Nations publications and documents relating to UNESCO's activities in the field of space communication, 1947-1974
Annotated bibliography of United Nations publications and documents relating to UNESCO's activities in the field of space communication, 1947-1974
Communication satellite projects: selective list of studies and reports
Communication satellite projects: selective list of studies and reports