Home › Authors › I︠U︡. V. I︠A︡kovt︠s︡ 👤 I︠U︡. V. I︠A︡kovt︠s︡ 1 book Books by I︠U︡. V. I︠A︡kovt︠s︡ Teoreticheskie problemy planov Teoreticheskie problemy planovogo t︠s︡enoobrazovanii︠a︡ 1977