TY  - DATA
AU  - McKeague,P.Charles
AU  - Mckeague, C. Patrick
AU  - Burzynski,Denny
TI  - An electronic companion to precalculus
SN  - 1580320015 (pbk.)
PY  - 1998///
CY  - New York
PB  - Cogito Learning Media Inc.
KW  - Algebra
KW  - Study and teaching
KW  - Algegra
KW  - Computer assisted instruction
KW  - Trigonometry
N1  - Includes bibliographical references
ER  -