Dryden's, C. E., Au. <br/><br/>
Efficient use of energy 

 - United Kingdom  I.P.C Science and technology Press  1975 
<br/><br/><label>ISBN: </label>0902852337 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Energy
<br/><br/><label>Dewey Class. No.: </label>621.4  / D80E