TY  - BOOK
AU  - Porwit Krzysztof
TI  - Central planning :  Evaluation of variants tr from   
U1  - X:75, K7 
PY  - 1967///
CY  - OXFORD
PB  - PERGAMON PRESS         
KW  - Planned Economy
N1  - University of Warsaw, Thesis, 1962
ER  -