TY  - BOOK
AU  - Lumabas, Rogelio S.
TI  - Plane trigonometry
SN  - 9710616870
U1  - Fil 516.24 L97 1993  
PY  - 1993///
CY  - Quezon City
PB  - Phoenix Pub.
KW  - Plane trigonometry--Problems, exercises, etc.
N1  - Includes index.
ER  -