000 00324nam a22001457a 4500
003 OSt
005 20200227144313.0
008 181218b xxu||||| |||| 00| 0 eng d
037 _bAir University
040 _cAUMC
100 _bBilal, Muhammad
245 _aEco Wash
260 _aMultan;
_bAUMC,
_c2016.
942 _2ddc
_cBK
999 _c22981
_d22981