TY  - BOOK
AU  - Briggs,William
AU  - Bryan,G.H.
ED  - Asutosh Collection (National Library, India)
TI  - The tutorial trigonometry
U1  - 514 
PY  - 1928///
CY  - London
PB  - W. B. Clive
KW  - Trigonometry
ER  -