000 00271nam a22001337a 4500
020 _a9788120353169
082 _a533.2
100 _aRATHAKRISHNAN
245 _aGAS DYNAMICS
250 _a6TH
260 _aNEW DELHI
_bPHI
_c2017
300 _aXX, 556P
942 _cBK
999 _c8884
_d8884