Title: Kvadrat B-52. Tropoĭ obrechennykh.
Authors: Sakharov, Petr Nikolaevich.; Nagaev, Nikolaĭ Nikolaevich.; Barashev, Pavel.; Kitain, V.
Publisher: Molodai︠a︡ gvardii︠a︡,
Year: 1957
Subjects: Espionage Soviet Union.