TY  - BOOK
AU  - Penna, Judith A.
TI  - Student Algebra and Trigonometry Graphs & models
SN  - 321531973
AV  - QA 152.3 .B42 2008 
PY  - 2008///.
CY  - Boston
PB  -  Pearson , 
KW  - Algebra and Trigonometry
N1  - Includes index; Includes index
ER  -