MLA

Johnston, William Walker Whitehall, 1835-1886. Album Page 54. Recto: People, including a black soldier in uniform, black women, and white men, in front of the barracks for the 1st West India Regiment at Old Nassau Fort in Nassau, New Providence; the tower for Christ Church Cathedral is visible on the right side of the image. Box 1, folder 52. circa 1860. https://collections.library.yale.edu/catalog/15817485.

APA, 6th edition

Johnston, William Walker Whitehall, 1835-1886. (["Box 1, folder 52"])(circa 1860)[Album Page 54. Recto: People, including a black soldier in uniform, black women, and white men, in front of the barracks for the 1st West India Regiment at Old Nassau Fort in Nassau, New Providence; the tower for Christ Church Cathedral is visible on the right side of the image]. https://collections.library.yale.edu/catalog/15817485.