000 00274nam a2200121Ia 4500
100 _aReddy, B Sudhakara
020 _a81-7022-681-3
942 _cBK
245 _aUrban energy systems
260 _aConcept Publ, New Delhi
_c1998
082 _a333.79 Red
300 _axvi,246p
999 _c25856
_d25856