See: Biosphere Reserve, World Network of Biosphere Reserves
See also: List of Conservation topics
... (GPU, 1922-1923) Obyedinennoye Gosudarstvennoye Politicheskoye Upravleniye[?] (OGPU, 1923-1934) Narodnyi Kommissariat Gosudarstvennoi Bezopastnosti[?] (NKVD, ...