TY  - BOOK
AU  - Hart, William L.
AU  - 
TI  - Plane and spherical trigonometry with applications
SN  - 971-08-1916-X
U1  - 516.242 H251 1964 
CY  - Manila
PB  - National Book Store.
KW  - Trigonometry- Tables
KW  - Trigonometry
ER  -