TY  - BOOK
AU  - Riedesel,Alan C
TI  - Guiding discovery in elementary school mathematics
U1  - 372.7 
PY  - 1967///
CY  - New York
PB  - Appleton-Century-Crofts
KW  - Mathematics
N1  - Bibliography: p. 458-467. Includes bibliographies
ER  -