MLA
G.-A. P. C. M. Co. (N.Y.). Alligator bait, St. Augustine [hand colored]. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxpsf-cor.
APA, 6th edition
G.-A. P. C. M. Co. (N.Y.). (unknown)[Alligator bait, St. Augustine [hand colored]]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxpsf-cor.
Chicago
G.-A. P. C. M. Co. (N.Y.), Alligator bait, St. Augustine [hand colored], unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/3720cfxpsf-cor.