00379nam a2200109Ia 4500008004100000082003100041100001500072245005900087260003600146300000900182650007800191140224s9999    xx            000 0 und d  aP 620.91:62(-77)(047.3) M1  aWorld Bank  aRenewable energy resources in the developing countries  aWashington DCbworld bankc1981  a33p.  aRenewable energy,Rural power technology,Conventional energy,Biomass fuels