TY  - BOOK
AU  - Nelson B. Henry
ED  -  National Society for the Study of Education. Committee on the Teaching of Arithmetic.
TI  - The teaching of arithmetic; prepared by the Society's Committee 
T2  - Yearbook of the National Society fr the Study of Education,
U1  - R  370.723  N227n 
PY  - 1951///
CY  - Chicago : 
PB  -  Distributed by the University of Chicago Press
KW  -  Arithmetic -- Study and teaching
KW  -  Arithmétique -- Étude et enseignement
N2  - 	

ER  -