TY  - BOOK
AU  - CIPOLLA Carlo M
TI  - Economic history of population
SN  - 014 02 0537 3
U1  - Y:60aX.1.N74, K4/SC 
PY  - 1974///
CY  - England
PB  - Penguin books         
N1  - Bibliography :P.137-148
ER  -