Two electric suppliers in Britain to merge New York Times, 2 September 1998 Iberdrola to buy Scottish Power for £11.6bn International Herald Tribune, 28 November 2006 "Sears turns to Green".
Truy cập ngày 1 tháng 1 năm 2009.  ^ a ă Two electric suppliers in Britain to merge New York Times, 2 September 1998 ^ Iberdrola to buy Scottish Power for £11.6bn International Herald Tribune, 28 November 2006 ^ “Sears turns to Green”.