--am hk  eng
++000    00000nam a2200000 a 4500
++090    |a621.3 GUI
++245 00 |aGuidelines on Energy Efficiency of Electrical Installations
++250    |a1st ed.
++260    |aHong Kong:|bElectrical and Mechanical Services Department,|c1999.
++300    |a43 p.:|bill.;|c30 cm.
++690    |aElectronic & Electricity_電子與電學