000 00260nam a2200121Ia 4500
100 _aShah, Beena
020 _a81-85119-84-3
942 _cBK
245 _aEnergy Education
260 _aNorthern, New delhi
_c1990
082 _a333.79 Sha
300 _axxvi; 288
999 _c32752
_d32752