General reports of the second world power conference : 

 - Berlin :  VDI Verlag,  1930. 
 - 264 p. :  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Power generation<br/>Energy infrastructure<br/>Electricity supply systems
<br/><br/><label>Dewey Class. No.: </label>621.3  / GEN