000 00260nam a2200109Ia 4500
008 210901s9999 xx 000 0 eng d
082 _a536 DAY
100 _aDayal B
245 0 _aHeat and thermodynamics
260 _aNew Delhi
_bR Chand & Co
942 _2ddc
_cBK
999 _c16625
_d16625