TY  - BOOK
AU  - Stephen Helba
TI  - Introductory Algebra and Trigonometry with Applications
SN  - 135035414
U1  - 512 C13i 
PY  - 1997///
CY  - USA
PB  - Simon and Schuster, 
KW  - Introductory algebra and trigonometry with application
ER  -