1.
Installation of the first direct telecomunications link between the Netherlands and Denmark by means of repeatered submarine coaxial cable / Standard Telephones and Cables Limited
Data Publicação:
1951
2.
Het postwezen van's gravenhage : in derdehalve eeuw / W. J. M. Benschop
Autor:
Benschop, W. J. M.
Data Publicação:
1951
