Columbia subject headings:
Harvard subject headings:
Electric utilities--China--Linyi Xian (Shanxi Sheng)--History.
Linyi Xian (Shanxi Sheng, China)--History.
Princeton subject headings:
Electric industries--China--Linyi Xian (Shanxi Sheng).
Electric utilities--China--Linyi Xian (Shanxi Sheng)--History.
Linyi Xian (Shanxi Sheng, China)--History.