Ühenduste sumbuvuse ja laenetakistuse arvestus : Tallinna-Riia ja Helsingi vahelise telefoni ühenduste ümberkorraldamise seletuskirja juure
Technical data
URL: http://www.digar.ee/id/nlib-digar:978511
ViewAvailable at the authorised workplace in the National Library of Estonia, Archival Library of the Estonian Literary Museum, Tallinn University of Technology Library, University of Tartu Library and Academic Library of Tallinn University
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URL: http://www.digar.ee/id/nlib-digar:978511
