Report of the Radio Research Board for the period 1st October 1933 to 31st December 1948
Subtitle: with a survey of the investigations carried out during the years 1934-1947 and report of the Director of Radio Research for the year ended 31st December 1948 ; Reports for the years 1949-1959.
Publisher: HMSO
Published: 1950
Place of publication: London
Language: eng