Title: Pokazateli kachestva sostoi︠a︡nii︠a︡ okruzhai︠u︡shcheĭ sredy po f. no. 18 "Otchet o sanitarnom sostoi︠a︡nii raĭona, goroda, oblasti" za 1991 god
Subjects: Environmental health, Statistics, Environmental monitoring
Places: Russia (Federation)