TY  - BOOK
T1  - Age of progress
A1  - Burchell, S.C
PP  - Amsterdam
PB  - Time-Life Books
YR  - 1966
UL  - https://tuklas.up.edu.ph/Record/UP-8027390931313467531
OP  - 192
CN  - D21. G73 1966
KW  - Social sciences.
ER  -