TY  - BOOK
AU  - Greenleaf, Newcomb
TI  - Calculator - based trigonometry with applications
U1  - 516.2 G84c 1988 
PY  - 1988///
CY  - California
PB  - Brooks/ Cole Publishing Co.
KW  - Calculators
KW  - Trigonometry
UR  - https://sic-library.pilc.org.ph/cgi-bin/koha/opac-retrieve-file.pl?id=7d06e96e840380cf35df5a0d924f6e85
ER  -