Problems of economic region. Papers of the Conference on Economic Re gionalization in Kazimierz (Poland) May 29-June 1, 1959. - Conference on Economic Regionalisation (1959 : Kazimierz ); Dziewonski, Kazimierz (Warszawa : Panstwowe Wydawnictwo Naukowe, 1961)
Keywords: Economic zoning -- Europe, Eastern; Europe, Eastern -- Economic policy