MLA
Two African American Young Women in Matching Dresses Standing Outside in Front of Trees and Stacks of Something. Stuart A. Rose Manuscript, Archives, and Rare Book Library, Box 73. https://digital.library.emory.edu/purl/40644j0zr8-cor.
APA, 6th edition
Two African American young women in matching dresses standing outside in front of trees and stacks of something (Box 73). [Photographic postcards]. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/40644j0zr8-cor.
Chicago
“Two African American Young Women in Matching Dresses Standing Outside in Front of Trees and Stacks of Something.” Photographic postcards. Robert Langmuir African American Photograph Collection, n.d. Box 73. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/40644j0zr8-cor.