Granit︠s︡a bytii︠a︡
Publisher: Molodai︠a︡ gvardii︠a︡
Published: 1966
Place of publication: Moskva
Language: rus
Number of pages: 158
Subjects: World War, 1939-1945; Underground movements; Polska Partia Robotnicza
Notes: At head of title: Marii︠a︡ Rutkevich.

Added t.p. in Polish: Granica istnienia.