TY  - BOOK
ED  - Polish Academy of Sciences
TI  - Problems of economic region
U1  - 330.94 
PY  - 1961///
CY  - Warsaw
PB  - Author
KW  - Economic history
N1  - Papers of the conference on Economic Regionalization in Kazimierz(Poland), May 29- June 1, 1959
ER  -