TY  - BOOK
AU  - Barcelon, Dolores G.
TI  - Plane Trigonometry / 
SN  - 971-42-0411-9
U1  - FIL 516.242 P692 2003 
PY  - 2003///
CY  - Bulacan : 
PB  - Trinitas Pub., 
KW  - Plane trigonometry
N1  - Includes bibliographical references and index
ER  -