Elementary arithmetic
Buckingham, Burdette Ross
Elementary arithmetic its meaning and practice. - Boston Ginn [1947] - viii, 744 p. illus., maps. 24 cm.
47011202
Number concept.
Arithmetic--Foundations.
QA9 / .B845
511
Elementary arithmetic its meaning and practice. - Boston Ginn [1947] - viii, 744 p. illus., maps. 24 cm.
47011202
Number concept.
Arithmetic--Foundations.
QA9 / .B845
511