TY  - BOOK
AU  - Hall,H.S
AU  - Knight, S.R.
TI  - Elementary Trigonmetry: H.S.Hall,S.R.Knight
U1  - 514 
PY  - 1957///
CY  - London
PB  - Macmillan
KW  - Mathematics
KW  - Trigonmetry
KW  - গণিত
ER  -