Guiding arithmetic learning
Clark, John Roscoe
Guiding arithmetic learning John R. Clark and Laura K. Eads. - Yonkers-on-Hudson, N.Y. World Book Co. [1954] - 280 p. illus. 23 cm.
54014787 /L
Arithmetic--Study and teaching (Elementary)
QA135 / .C513
372.7
Guiding arithmetic learning John R. Clark and Laura K. Eads. - Yonkers-on-Hudson, N.Y. World Book Co. [1954] - 280 p. illus. 23 cm.
54014787 /L
Arithmetic--Study and teaching (Elementary)
QA135 / .C513
372.7