Improving power system efficiency in developing countries through performance countracting Yates, Philip World Bank text Washington World Bank 1989 ind 38 hlm il 26 cm Philip Yates Economics Economic development Developing countries 338.1 WPS 109 170309 20090604094740.0 NADAR-06090000017293 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)