TY  - BOOK
AU  - KULA Witold
TI  - Economic theory of the feudal system:  Toward of the model of the polish economy 1500-1800.   
U1  - X:3D.595.M00<--J00, L6/SC 
PY  - 1976///
CY  - London
PB  - NLB          
ER  -