TY  - BOOK
T1  - The step to man
A1  - Platt, John Rader 1918-
LA  - English
PP  - New York
PB  - Wiley
YR  - 1966
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217601358812
OP  - 216
CN  - HM 101 P57
KW  - Social change.
KW  - Progress.
ER  -