MLA

Johnston, William Walker Whitehall, 1835-1886. Album Page 55. Recto: People, including a black soldier in uniform and five white men, in the ordinance yard in front of the barracks for the 1st West India Regiment at Old Nassau Fort in Nassau, New Providence; other soldiers are visible on the verandas of the barrackes. Box 1, folder 53. circa 1860. https://collections.library.yale.edu/catalog/15817486.

APA, 6th edition

Johnston, William Walker Whitehall, 1835-1886. (["Box 1, folder 53"])(circa 1860)[Album Page 55. Recto: People, including a black soldier in uniform and five white men, in the ordinance yard in front of the barracks for the 1st West India Regiment at Old Nassau Fort in Nassau, New Providence; other soldiers are visible on the verandas of the barrackes]. https://collections.library.yale.edu/catalog/15817486.