TY  - BOOK
AU  - WIlliagan J D
AU  -  Lynch K A
TI  - Sources and methods of historical demography
T2  - Studies in Social Discontinuity
U1  - Y:5v, M2 
PY  - 1982///
CY  - New York    
PB  -  Academic Press       
KW  -  History-Populations
KW  - Demography
N1  - Bibliography 447-486p
ER  -