TY  - BOOK
AU  - Tan,Vidal A.
AU  - Perez,Francisco
TI  - Plane and spherical trigonometry; with solid geometry
U1  - 514.5 
PY  - 1957///]
CY  - Mla.
PB  - Macaraig
KW  - Trigonometry
KW  - TOPOLOGY
ER  -