Buckingham, B. R. (Burdette Ross), b. 1876. Buckingham, B. R. (Burdette Ross), b. 1876.

Elementary arithmetic : its meaning and practice. - Boston : Ginn, [1953]

53004319 /L


Number concept.
Arithmetic -- Foundations.--Arithmetic -- Foundations.

QA9 / .B845 1953

511