1966. 2008-11-12T20:24:16Z. 2020-12-02T18:53:07Z. Geologicheskiĭ institut (Akademii︠a︡ nauk SSSR). Glavnoe upravlenie geodezii i kartografii. Russian&English. Public. Eurasia.
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1980. 2018-10-22T18:35:25Z. 2020-08-14T18:08:33Z. Geologicheskiĭ institut (Akademii︠a︡ nauk SSSR). Vsesoi︠u︡znoe aėrogeologicheskoe nauchno-proizvodstvennoe obʺedinenie "Aerogeologii︠a︡" Ministerstva geologii SSSR. Russian&English. cartographic image. Public. Eurasia and Eurasia.