TY  - BOOK
AU  - Raisinghania,M D
AU  - Dass,H K
AU  - Saxena,H C
TI  - Simplified course trignometry : fully solved
SN  - 81 219 1858 8
U1  - 516.24 
PY  - 1999///
CY  - New Delhi
PB  - S Chand & company ltd
KW  - De moivre`s theorem
KW  - Logarithms
ER  -