TY  - BOOK
T1  - A half century of significant developments in the teaching of science and mathematics during the first half of the twentieth century, and an account of the development of Central Association of Science and Matehmatics Teachers and the part it has played in these developments.
LA  - English
PP  - Oak Park, Ill.
PB  - s.n.
YR  - 1950
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217603692932
OP  - 197
NO  - At head of title: Fifteith anniversary volume
CN  - Q 181 C45
KW  - Science : Study and teaching.
KW  - Mathematics : Study and teaching.
ER  -