00317nam a22001097a 4500082002700000100002400027245005800051260002400109300002900133526003700162650000800199  a621.56bSevcL-8, P-19  aSeverns, william H.  aAir Conditioning & RefrigerationcSeverns, william H.  bWiley International  avi, 563 p, :bill.c19cm  a0b0c0d621_560000000000000_SEV  aMCE