The Pulkovo observatory
А01 Г-4/79 английский/The Pulkovo observatory / Acad. of sciences of the USSR. Central astronomical observatory.The Pulkovo observatory / Acad. of sciences of the USSR. Central astronomical observatory.The Pulkovo observatory.Μ./L./, 1958 ( ). - 1958. - 48 с., 1 л. ил. : ил. ; 20 см см.The Pulkovo observatory. Μ., L., 1958 .А(Э42)/Central astronomical observatory at Pulkovo (Leningrad)/