Nähtamatu duell
By: A. Hanschmidt.
Publisher: Eesti Raamat
Published: 1969
Place of publication: Tallinn
Language: est
Number of pages: 179
Subjects: Espionage -- Estonia -- Fiction
Genres: Fiction
Other titles: Nevidimaia duelʹ.
Notes: Russian title in colophon: Nevidimaia duelʹ.

A fictionalized account.