TY  - BOOK
AU  - Fajardo, Ira A.,
TI  - Spherical trigonometry: a comprehensive approach 
SN  - 9789718213322
U1  - 516.24  
PY  - 2013///
CY  - Malabon City
PB  - Mutya Publishing House.
KW  - Spherical trigonometry
ER  -