U 1, et amerikansk spionasjeprosjekt i Norge
By: Roger W. Sørdahl.
Publisher: J.W. Cappelen
Published: 1985
Place of publication: [Oslo]
Language: nor
Number of pages: 140
Subjects: Aerial reconnaissance, American -- Norway.; Espionage, American -- Norway.; Balloons.
Other titles: U en, et amerikansk spionasjeprosjekt i Norge.
Notes: Bibliography: p. 137-140.