TY  - BOOK
AU  - Elich,Joseph
AU  - Elich,Carletta J.
TI  - Trigonometry using calculators
SN  - 0201031868
AV  - QA531 .E44
U1  - 516/.24/0285 
PY  - 1980///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Trigonometry
KW  - Calculators
N1  - Includes index
ER  -