TY  - BOOK
AU  - Baltazar,Ethel Cecille M.
AU  - Dy,Ana Liza M.
AU  - Vidar,Melvin A.
TI  - Plane and spherical trigonometry: text / workbook
SN  - 9789719801641
PY  - 2014///
CY  - Quezon City
PB  - C & E Publishing, Inc.
KW  - Plane trigonometry
KW  - Problems, exercises, etc
KW  - Spherical trigonometry
KW  - Trigonometry
KW  - Textbooks
ER  -