1. 1
   Administration report of the General Manager, Department of Government Electrical Undertakings for .

   Colombo : [Dept. of Government Electrical Undertakings],

   主题: “...Electric power production Sri Lanka Statistics Periodicals....”
   

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2. 2
   Progress and programme

   [Colombo] : The Ministry,

   v. : ill. ; 29 cm.

   主题: “...Electric power Sri Lanka Periodicals....”
   

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