Posti- ja lennätinlaitoksen taloudellinen kehitys vuosina 1949-1973
Subtitle: graafinen esitys = Post- och telegrafverkets ekonomiska utveckling åren 1949-1973 : grafisk framställning = The economic development of the Post and Telegraph Office during the years 1949-1973 : graphical representation
By: Post- ja lennätinhallitus.
Publisher: Postija lennätinhallitus
Published: 1974
Place of publication: Helsinki
Language: fin
Number of pages: 79
Subjects: Finland. Posti- ja lennätinhallitus.
Other titles: Postoch telegrafverkets utveckling åren 1949-1973.; The economic development of the Post and Telegraph Office during the years 1949-1973.
Notes: English, Finnish, and Swedish.