Wagner, Hermann-Josef <br/><br/>
Introduction to hydro energy systems : basics, technology and operation / 
Wagner, Hermann-Josef. 
 - New York :  Springer,  2011. 
 - ix, 129p.; 24cm. 
 - Green energy and technology. .
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>9783642268946 
<br/><br/><label>Dewey Class. No.: </label>621.312134 WAG