TY  - BOOK
AU  - Rising,Gerald R
AU  - Harkin,Joseph B.
TI  - The third "R": mathematics teaching for grades K-8 
SN  - 9780534005672
AV  - QA135 
PY  - 1978///
CY  - Belmont, California
PB  - Wadsworth Pub. Company
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - 2; 2
ER  -