TY  - BOOK
T1  - The progress of arithmetic in the last quarter of a century.
A1  - Smith, David Eugene
LA  - English
PP  - Boston
PB  - Ginn and Company
YR  - 1923
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217607689713
CN  - QA135 S65
ER  -