00291nam a2200109Ia 4500008004100000082001600041100001500057245005100072250000800123260004200131300000800173191201s2012    xx            000 0 und d  a621.57bKHT  aKHURMI, RS 0aTextbook of Refrigeration and Air-conditioning  aRep  c2012bS Chand and Co. Ltd.aNew Delhi  a754