Denki jigyō seisansei sokutei no ichi kokoromi / 
Title on p. [4] of cover:  An analysis for measurement of productivity of electric power supply industry 
[Denryoku Chūō Kenkyūjo Denryoku Keizai Kenkyūjo hen]. 
 - Tōkyō :  Denryoku Chūō Kenkyūjo Denryoku Keizai Kenkyūjo,  Shōwa 34 [1959] 
 - 62 p. :  ill. ;  26 cm. 
 - Denryoku Keizai Kenkyūjo kenkyū hōkoku ;  no. 15 .
<br/><br/> Cover title. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>LCCN: </label>j  65002702 /AJ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric utilities--Japan.
<br/><br/><label>LC Class. No.: </label>HD9685.J32  / D37 1959