TY  - BOOK
AU  - Bansi Lal
AU  - Ghulam Abbas Khan
AU  - Prem Kumar
TI  - Intermediate Trignometry
U1  - 516.24 
CY  - Lahore
PB  - Doaba House Lahore.
KW  - MCE
N1  - 0; 0; 0; 516_240000000000000_LAL
ER  -