TY  - BOOK
AU  - Baltazar, Ethel Cecille M.
AU  - Dy, Analiza M.
AU  - Vidar, Melvin A.
TI  - Plane and spherical trigonometry: : text/workbook
SN  - 9789719801641
U1  - 516.34 
PY  - 2014///
CY  - Quezon City
PB  - C&E Pub.
KW  - Trigonometry -- Textbooks
KW  - Trigonometry -- Problems, exercise, etc
KW  - lcgft
ER  -