TY  - BOOK
AU  - Balmeo, Virginia G.
TI  - Worktext in trigonometry for college freshmen / 
SN  - 9789719553045
AV  - QA 537 .B215 2012
PY  - 2012///]
CY  - Intramuros, Manila 
PB  - Purely Books Trading and Publishing
KW  - Trigonometry
KW  - Trigonometry -- Problems, exercises, etc.
N1  - Include references
ER  -