Problemy rat︠s︡ionalʹnogo ispolʹzovanii︠a︡ estestvennykh resursov i okhrany prirody v Komi ASSR

by V. P. Gladkov, Komi A.S.S.R. (R.S.F.S.R.). Sovet Ministrov, Akademii︠a︡ nauk SSSR. Komi filial