TY  - GEN
AU  - Delbourgo, Roger
TI  - Trigonometry: : notes, problems and exercises / 
SN  - 9789813203112 
U1  - 516.24 
PY  - 2017///
CY  - New Jersey
PB  - World Scientific
N1  - Purchased under NBHM grant for the year 2023-2024
ER  -