Cite

Unknown photographer A sixth plate daguerreotype post mortem portrait of the same subject as Item #2076. Sixth plate, daguerreotype

MLA

Simpson, Randolph Linsly, 1927-1992. Unknown photographer A sixth plate daguerreotype post mortem portrait of the same subject as Item #2076. Sixth plate, daguerreotype. Box 2, folder 15. circa 1855. https://collections.library.yale.edu/catalog/2002077.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 2, folder 15"])(circa 1855)[Unknown photographer A sixth plate daguerreotype post mortem portrait of the same subject as Item #2076. Sixth plate, daguerreotype]. https://collections.library.yale.edu/catalog/2002077.