TY  - BOOK
AU  - Collingwood,David H.
TI  - Precalculus
PY  - 2019///
CY  - [Place of publication not identified]
PB  - David H. Collingwood, K. David Prince, and Matthew M. Conroy
KW  - Mathematics
KW  - sears
KW  - Problem solving
UR  - https://drive.google.com/file/d/147es6tn32_1Eut6vyH9R4xCftT-OYyoy/view?usp=share_link
ER  -