TY  - BOOK
AU  - Catolos,Elvira C.
AU  - Avecilla,Leni A.
AU  - Feniquito,Iryne A.
AU  - Alba,MaCristina S.
AU  - Amado,MaVictoria P.
AU  - Valderama,Julius S.
TI  - Plane and spherical trigonometry
SN  - 9789718213339
U1  - 516.24  
PY  - 2013///
CY  - Malabon City
PB  - Mutya Publishing House.
KW  - Trigonometry.
KW  - Plane trigonometry.
KW  - Spherical trigonometry.
ER  -