TY  - BOOK
AU  - Demana, Franklin
AU  - Bert  K. Waits
AU  - Stanley R. Clemens
TI  - Precalculus Mathematics: A Graphing Approach 
SN  - 9780201529050
AV  - QA 154.2 .D444 1993 
PY  - 1993///
CY  - Menlo Park
PB  - Addison-Wesley
KW  -  
N1  - includes bibliographical references and index
ER  -