MLA

Simpson, Randolph Linsly, 1927-1992. The Brady National Gallery, Hoyt, Washington, D.C. Bust portrait of Josiah Thomas Walls [1842-1905]; man with moustache in three piece suit, white shirt and tie. Carte de visite. Box 11, folder 480. circa 1870. https://collections.library.yale.edu/catalog/2003952.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 11, folder 480"])(circa 1870)[The Brady National Gallery, Hoyt, Washington, D.C. Bust portrait of Josiah Thomas Walls [1842-1905]; man with moustache in three piece suit, white shirt and tie. Carte de visite]. https://collections.library.yale.edu/catalog/2003952.