TY  - GEN
AU  - DUNCAN, Otis Dudley (Ed.)
AU  - SPENGLER, Joseph J.
TI  - Demographic Analysis: Selected Readings
U1  - 304.62/SPE 
PY  - 1956///
CY  - ILLINOIS
PB  - The Free Press
N1  - MORTALITY AND FERTILITY; POPULATION ANALYSIS; POPULATION GROWTH
ER  -