Helcke, George <br/><br/>
The energy saving guide  tables for assessing the profitability of energy saving measures with explanatory notes and worked examples 
by George Helcke 
 - 1st ed 
 - Oxford  New York  Published for the Commission of the European Communities by Pergamon Press  1981 
 - xii, 224 p.  26 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dwellings--Energy conservation<br/>Energy conservation--Economic aspects
<br/><br/><label>Dewey Class. No.: </label>658.1  / 553