TY  - BOOK
AU  - Willigan J Dennis
AU  -  Lynch Katherine A
TI  - Sources and methods of historical demography
T2  - Stuides in Discontinuity
SN  - 0127570209
U1  - Y:5:(B), M2 
PY  - 1962///
CY  - New York
PB  - Academic Press        
KW  - Family Planning
N1  - Bibliography chapterwise & P: 447-486
ER  -