TY  - BOOK
AU  - Spiegelman,Mortimer
TI  - Introduction to demography
SN  - 0674461002
U1  - 304.6 
PY  - 1968/// [Printing 1973]
CY  - Cambridge, Mass, London
PB  - Harvard University Press
KW  - Demography
N1  - Includes index and Bibliography: p. [425]-502.
ER  -