École nationale superieure des postes et telecommunications
Conferências e comunicações / Associação Internacional de estudos sobre Mecanografia
Sala sit siemens : sezione delle telecomunicazioni / Alberto Bandini Buti
List of oceanic depths and serial temperature observationd : received at the admiralty during the year 1894, from H.M surveying ships, indian marine survey and british submarine telegraph companie / Hydrographic Department