MLA

Johnston, William Walker Whitehall, 1835-1886. Album Page 69. Recto: Group of fourteen non-commissioned officers from the 1st West India Regiment, probably in front of the barracks at St. Lucia near a door marked for the office of the quartermaster. Box 1, folder 67. circa 1860. https://collections.library.yale.edu/catalog/16657613.

APA, 6th edition

Johnston, William Walker Whitehall, 1835-1886. (["Box 1, folder 67"])(circa 1860)[Album Page 69. Recto: Group of fourteen non-commissioned officers from the 1st West India Regiment, probably in front of the barracks at St. Lucia near a door marked for the office of the quartermaster]. https://collections.library.yale.edu/catalog/16657613.