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Transport and communications statistics
1976
Persistent link: https://www.econbiz.de/10003254676
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Telephone call markets
Ajo, Reino - 1962
Persistent link: https://www.econbiz.de/10000306436
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Frequency of telephone calls by subscriber groups and elasticity of demand for calls
Kaul, S. N.; Chellapan, V. R. - In: Margin : quarterly journal of the National Council of … 13 (1980) 1, pp. 94-102
Persistent link: https://www.econbiz.de/10002197803
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Transport i svjaź S[ojuza] SSR : Centr. statist. Upravl. pri Sov. Min. SSSR ; Statist. sbornik. (Red. Sazonov S. V.)
Sazonov, S. V. (contributor) - 1957
Persistent link: https://www.econbiz.de/10002271202
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Télécommunications : statistique annuelle 1979
1980
Persistent link: https://www.econbiz.de/10003208161
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Verkehr : Nachrichtenübermittlung, 1976
1976
Persistent link: https://www.econbiz.de/10003263006
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Transport i svjaz' Latvijskoj SSR (Statističeskij sbornik)
1968
Persistent link: https://www.econbiz.de/10003254984
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Undersøkelse om bruk av Televerkets telegramtjeneste 1975
1976
Persistent link: https://www.econbiz.de/10003258485
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Síntesis gráfica del desarrollo de las comunicaciones y los transportes
1964
Persistent link: https://www.econbiz.de/10003185829