TY  - GEN
AU  - Porwit, Krzysztof.
AU  - Porwit, Krzystof.
TI  - Central planning: : evaluation of variants
AV  - HD85  
PY  - 1967///
CY  - Warsaw
PB  - Pergamon Press
KW  - Planning - Management
N1  - Includes bibliography (193 - 200 p.)
ER  -