TY  - BOOK
AU  - Shakeel Azhar
TI  - Algebra and trigonometry : class 11 / 
U1  - TB 371.2 C.11 [n.d.] 
PY  - 0000///[n.d]
CY  - Lahore
PB  - Qureshi brothers publishers
KW  - Textbook
ER  -