TY  - BOOK
ED  - School Mathematics Study Group
TI  - Mathematics for junior high school student's text
AV  - QA39 S2
PY  - 1961///
CY  - New haven
KW  - Matemáticas
KW  - Estudio y enseñanza (Secundaria)
N1  - Teacher's commentary. rev. ed. new haven v. en diagrs 25 cm
ER  -