TY  - BOOK
ED  - National Council of Teachers of Mathematics
TI  - Environment mathematics for high school: : twenty-eight yearbook
T2  - Yerabook (National Council of Teachers of Mathematics) , 1963
AV  - MATH QA1.N3 
PY  - 1963///
CY  - Washington, D.C.
PB  - National Council of Teachers of Mathematics
KW  - Mathematics
KW  - Study and teaching (Secondary)
N1  - Includes bibliogrpaphy
ER  -