Swain, Robert L.
Understanding arithmetic / Robert L. Swain. - London : Holt, Rinehart and Winston, c 1963.. - xxi, 268 p. : ill. ; 24 cm. - Understanding mathematics program. .
Includes index.
Bibliography : p. 253-256.
344 344
Arithmetic.
511 / S14u
Understanding arithmetic / Robert L. Swain. - London : Holt, Rinehart and Winston, c 1963.. - xxi, 268 p. : ill. ; 24 cm. - Understanding mathematics program. .
Includes index.
Bibliography : p. 253-256.
344 344
Arithmetic.
511 / S14u