MLA

Mitchell, Edward H., and Panama-Pacific International Exposition Company. Night Illumination of the Panama-Pacific International Exposition, San Francisco. Edward H. Mitchell, 0AD. https://collections.library.yale.edu/catalog/2020747.

APA, 6th edition

Mitchell, E. H., & Company, P.-P. I. E. (0 C.E.). Night illumination of the Panama-Pacific International Exposition, San Francisco [Illustrations, Posters]. Edward H. Mitchell. https://collections.library.yale.edu/catalog/2020747.