TY  - BOOK
AU  - Wrigley E A Ed.
TI  - Nineteenth-century society:  Essays in the use of q   
T2  - Cambridge Group for  the History of Population and Social Structure Publication
U1  - Y:5.M91<---M01, L2 
PY  - 1972///
CY  - London
PB  - Cambridge University Press        
KW  - Demography
N1  - Bibliography: p 234-241; Appendices at the end of each chapter
ER  -