TY  - BOOK
AU  - Cathcart,W.George
TI  - The Mathematics laboratory: readings from the Arithmetic teacher
AV  - QA16 .M38
U1  - 510/.7/1 
PY  - 1977///
CY  - Reston, Va.
PB  - National Council of Teachers of Mathematics
KW  - Mathematics laboratories
KW  - Local
KW  - Mathematics
KW  - Study and teaching (Elementary)
N1  - Includes index
ER  -