Operat͡s︡ii͡a︡ "Siniĭ treugolʹnik"
Subtitle: rasskazy o chekistakh Ėstonii
By: [glavnyĭ redaktor V.E. Poryvkin ; sostaviteli, I.P. Papulovskiĭ, V.R. Mi͡u︡rk].
Contributors: Poryvkin, V. E.; Papulovskiĭ, Ivan.; Mi͡u︡rk, V. R.
Publisher: "Ėėsti raamat"
Published: 1988
Place of publication: Tallinn
Language: rus
Number of pages: 446
Subjects: Secret service -- Estonia.; Espionage -- Estonia.; Estonia -- History.
Notes: "Massovo-politicheskoe izdanie"--Verso of t.p.