TY  - BOOK
AU  - Hagos, Luisito C., 
AU  - Carmelita E. Agalabia
TI  - Plane Trigonometry
SN  - 97393014188
AV  - QA533 H1234 2001
PY  - 2001///
CY  - Manila
PB  - Ymas Publishing House
KW  - Plane Trigonometry
ER  -