TY  - BOOK
AU  - Willerding,Margaret F.
AU  - Hoffman,Stephen P.
TI  - College algebra and trigonometry
SN  - 0471946583
AV  - QA154QA154 .W59.W59
U1  - 512/.13 
PY  - 1971///]
CY  - New York
PB  - Wiley
KW  - Algebra
KW  - Trigonometry
ER  -