[The problem of sanitary protection of the air within the framework of the Council of Economic Mutual Assistance].
D000397:Air Pollution / Q000517:prevention & control*; D004467:Economics; D005061:Europe, Eastern; D007391:International Cooperation
Problema sanitarnoĭ okhrany atmosfernogo vozdukha v ramkakh Soveta ékomomicheskoĭ vzaimopomoshchi.