1.
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[English version] [print edition] /
Geneva : ITU, 1949.
Multiple copies available |
|
2.
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[Spanish version] [print edition] /
Ginebra : UIT, 1949.
Multiple copies available |
|
3.
|
[French version] [print edition] /
Genève: UIT, 1949.
Multiple copies available |
|
4.
|
[Spanish version] [print edition] :
Ginebra : UIT, 1949.
Multiple copies available |
|
5.
|
[French version] [print edition] :
Genève : UIT, 1949.
Multiple copies available |
|
6.
|
[English version] [print edition] :
Geneva : ITU, 1949.
Multiple copies available |
|
7.
|
[French version] [electronic resource] /
Genève : UIT, 1949, PDF 2016.
|
8.
|
[Spanish version] [electronic resource] /
Ginebra : UIT, 1949, PDF 2016.
|
9.
|
[English version] [electronic resource] /
Geneva : ITU, 1949, PDF 2016.
|
10.
|
[Spanish version] [electronic resource] :
Ginebra : UIT, 1949, PDF 2016.
|