TY  - BOOK
ED  - Oklahoma.
TI  - Course of study in elementary arithmetic ..
T2  - Its Bulletin
AV  - QA135 .O4
U1  - 372.7 
PY  - 1943///]
CY  - [Oklahoma City
KW  - Arithmetic
KW  - Study and teaching
KW  - Education
KW  - Oklahoma
KW  - Curricula
N1  - At head of title: State of Oklahoma. Dept. of education. August, 1943; On cover: Revised, 1943; Includes bibliographies
ER  -