The principal trends of the socio-economic development of the Polish People's Republic, in the years 1971-1975. Report for the 6th PUWP Congress, December 7th, 1971.
The principal trends of the socio-economic development of the Polish People's Republic, in the years 1971-1975. Report for the 6th PUWP Congress, December 7th, 1971.
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The principal trends of the so ...... Congress, December 7th, 1971.