Ryan, W. D. (1917). Illumination of the Panama-Pacific International Exposition: Presented at a meeting of the Schenectady Section of the American Institute of Electrical Engineers, Schenectady, N.Y., May 4, 1916. American Institute of Electrical Engineers.
Dyfyniad Arddull ChicagoRyan, William D'Aarcy. Illumination of the Panama-Pacific International Exposition: Presented at a Meeting of the Schenectady Section of the American Institute of Electrical Engineers, Schenectady, N.Y., May 4, 1916. [New York?]: American Institute of Electrical Engineers, 1917.
Dyfyniad MLARyan, William D'Aarcy. Illumination of the Panama-Pacific International Exposition: Presented at a Meeting of the Schenectady Section of the American Institute of Electrical Engineers, Schenectady, N.Y., May 4, 1916. American Institute of Electrical Engineers, 1917.