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international radio conference 1938 cairo
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Cilt sonuçları
General radio regulations (revision of Cairo, 1938)
International radio conference (1938 Cairo) · Yayınevi bilinmiyor
140 sayfa · 1938
Revisions (1932 Regulations) 1938 / Radio / Law and legislation / International telecommunication convention 1932
Telecommunication
International Radio Conference (1938 Cairo) · U.S. Govt. Print. Off.
335 sayfa · 1940
Radio / Law and legislation / International Telecommunications Convention, 1932. Revisions (1932 Regulations) 1938