TY  - BOOK
AU  - Shipp,Donald E.
AU  - Adams,Sam
TI  - Developing arithmetic concepts and skills
PY  - 1964///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Arithmetic
KW  - Study and teaching (Elementary)
N1  - Includes bibliographies
ER  -