The World Directory of Renewable Energy Suppliers & Services 1997 - James & James London 1997 - p472 - Energy Storage Geothermal Energy Hydro & Wave Energy ISBN: 1-873956-68-0 = The World Directory of Renewable Energy Suppliers & Services 1997 Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: P2204 Nat. Bib. Agency Control No.: 620.91(058.7)WOR Universal Decimal Class. No.: 620.91(058.7)