TY  - BOOK
AU  - Mahaffey, Michael L.
AU  - Perrodin, Alex F.
TI  - Teaching elementary school mathematics
U1  - 510.7 
PY  - 1973///
CY  - Itasca,Ill
PB  - F.F.Peacock
KW  - Mathematics-Study and teaching-Elementary
N1  - Includes index
ER  -