The lag of visual sensation in its relation to wave lengths and intensity of light

Chicago citation style
Bills, Marion A. (Marion Almira), b. 1886. The lag of visual sensation in its relation to wave lengths and intensity of light. [1920]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/102292127. (Accessed November 19, 2018.)
APA citation style
Bills, Marion A. (Marion Almira), b. 1886, ([1920]) The lag of visual sensation in its relation to wave lengths and intensity of light. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/102292127
MLA citation style
Bills, Marion A. (Marion Almira), b. 1886. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/102292127>.
Note: These citations are programmatically generated and may be incomplete.