TY  - BOOK
AU  - Spengler, Joshep John
AU  - Duncan, Otis Dudley
TI  - POPULATION THEORY AND POLICY
U1  - 312.08 
PY  - 1956///
CY  - Glencoe
PB  - Free Press
KW  - Population. Collections
N1  - Bibliography: P. 510-519. Includes Bibliographical Reference
ER  -