000 00263 a2200109 4500
082 _a333.79
_bENE
245 _aEnergy year book 1986
260 _aIslamabad:
_bMinistry of petrolum and natural resources,
_c1986.
300 _b.
_a155p
546 _aeng
942 _cBK
999 _c23938
_d23938