TY  - BOOK
AU  - Balmeo, Virginia.
TI  - Worktext in Trigonometry: for college freshmen 
SN  - 97897199983163
U1  - FIL 516.24 B21w 2013 
PY  - 2013///
CY  - Intramuros, Manila
PB  - Purelybooks Trading And Publishing Corp.
KW  - Trigonometry
KW  - Textbooks
KW  - Study and teaching
N1  - Includes references
ER  -