“Эрхүү мужийн Байгаль орчны 2012 оны төлөв байдал” төрийн тайлан (орос хэлээр)
State report On the state of the environment in Irkutsk region and its protection, 2012 (rus).pdf — PDF document, 14138 kB (14477335 bytes)
State report On the state of the environment in Irkutsk region and its protection, 2012 (rus).pdf — PDF document, 14138 kB (14477335 bytes)