MLA

Johnston, William Walker Whitehall, 1835-1886. Album Page 36. Recto: Copy photograph of a painting of two women in profile. Box 1, folder 34. circa 1860. https://collections.library.yale.edu/catalog/16657586.

APA, 6th edition

Johnston, William Walker Whitehall, 1835-1886. (["Box 1, folder 34"])(circa 1860)[Album Page 36. Recto: Copy photograph of a painting of two women in profile]. https://collections.library.yale.edu/catalog/16657586.