TY  - BOOK
AU  - Stone PA
TI  - Structure, size and costs of urban settlements
T2  - National institute of Economics and social research, economicand social studies, 28
U1  - X:89K33.3.N7, L3 
PY  - 1973///
CY  - London
PB  - cambridge University Press UK       
KW  - Regional Economics
ER  -