The electric light and power industry in the United States :
with chapters on the electric railway and gas industries, and an up-to-date bibliography of public utility references, revised to January 1, 1931.

APA Citation

National Electric Light Association. (1931). The electric light and power industry in the United States: with chapters on the electric railway and gas industries, and an up-to-date bibliography of public utility references, revised to January 1, 1931. New York, N. Y.: National electric light association.

MLA Citation

National Electric Light Association. The Electric Light And Power Industry In the United States: With Chapters On the Electric Railway And Gas Industries, And an Up-to-date Bibliography of Public Utility References, Revised to January 1, 1931. New York, N. Y.: National electric light association, 1931.