TY  - BOOK
AU  - Rusiana,Arturo G.
TI  - Modern trigonometry: plane and spherical
U1  - 516.24 
PY  - 1971///
CY  - Cebu City
PB  - E.Q. Cornejo & Sons
KW  - Trigonometry
KW  - Mathematics
N1  - 500-599
ER  -