TY  - BOOK
T1  - People! challenge to survival
A1  - Vogt, William 1902-
LA  - English
PP  - London
PB  - Victor Gollancz
YR  - 1961
UL  - https://tuklas.up.edu.ph/Record/UP-1685523046125120750
OP  - 257
CN  - HQ766 V63
KW  - Birth control.
KW  - Population.
ER  -