TY  - BOOK
AU  - Fass,Arnold L.
AU  - Newman,Claire M.
TI  - Unified mathematics: content, methods, materials for elementary school teachers
SN  - 0669893595
AV  - QA135.5 .F35
U1  - 510 
PY  - 1975///]
CY  - Lexington, Mass.
PB  - Heath
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Local
N1  - Includes index; Bibliography: p. 447-452
ER  -