TY  - GEN
AU  - Baratto, stefan
AU  - Bergman, barry
TI  - Elementary & intermediate algebra:  a unified approach
SN  - 9780073048239
U1  - 512 
PY  - 2008///
CY  - boston
PB  - Mc Grow Hill
KW  - Algebra
KW  - Graphs and linear equations
ER  -