APA (7th ed.) Citation

Houston Lighting & Power Company. (1972). Electric power systems in Texas (Rev. to date: 11-15-68 ... 2-9-72.). Houston Lighting & Power Co..

Chicago Style (17th ed.) Citation

Houston Lighting & Power Company. Electric Power Systems in Texas. Rev. to date: 11-15-68 ... 2-9-72. Houston, Tex.: Houston Lighting & Power Co., 1972.

MLA (9th ed.) Citation

Houston Lighting & Power Company. Electric Power Systems in Texas. Rev. to date: 11-15-68 ... 2-9-72. Houston Lighting & Power Co., 1972.