00270nam a2200097Ia 450000500170000000800410001710000250005824500440008326000370012730000080016420260413101000.0230516s9999||||xx |||||||||||||| ||und||  aAnanthanaryanan, P.N 0aBasic Refrigeration and Airconditioning  bN. Delhi, Tata Mcgraw Hillc2005  a702