MLA
Standard Flashlight Co. (New York, N.Y.). Practical Nurses of New York Banquet, Hotel Henry Hudson, New York, New York, May 21, 1958. May 21, 1958. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/204rjdfn3j-cor.
APA, 6th edition
Standard Flashlight Co. (New York, N.Y.). (May 21, 1958)[Practical Nurses of New York Banquet, Hotel Henry Hudson, New York, New York, May 21, 1958]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/204rjdfn3j-cor.
Chicago
Standard Flashlight Co. (New York, N.Y.), Practical Nurses of New York Banquet, Hotel Henry Hudson, New York, New York, May 21, 1958, May 21, 1958, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/204rjdfn3j-cor.