TY  - BOOK
AU  - Phelps, Harold A
AU  - Henderson, David
TI  - Population in its human aspects
U1  - 301.32 21st
PY  - 1958///
CY  - New York
PB  - Appleton-Centry-Crofts
KW  - Population; Human ecology; Fertility, Human; Birth control; Fertility, Human-Statistics
ER  -