TY  - BOOK
AU  - Sobel,Max A.
AU  - Maletsky,Evan M.
TI  - Essentials of mathematics4: Skills and Concept 
SN  - 0663235928
AV  - QA11 .S663 1999
PY  - 1973///
CY  - New Jersey
PB  - Ginn and, company
KW  - Mathematics
KW  - Study and teaching (Secondary)
ER  -