TY  - BOOK
AU  - Russell Josiah C Ed.
TI  - Medieval demographic
T2  - AMS Studies in  the Middle Ages. 12
SN  - 0404614426
U1  - Y:5.5.J, M7 
PY  - 1987///
CY  - New York
PB  - AMS Press        
KW  - Demographic
ER  -