Gould J M <br/><br/>
Output and productivity in the electric and gas in 

 -  1946 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical
<br/><br/><label>Dewey Class. No.: </label>X9D66: :73:N4, H6