MLA

Simpson, Randolph Linsly, 1927-1992. Anthony & Co, New York Stamped recto, "Photographic History. The War for the Union." "2512" etched into negative. Mounted verso, "War Views. Soldiers drawing water, Fredericksburgh, Va. No. 2512." Stereograph, yellow card. Box 12, folder 552. 1862. https://collections.library.yale.edu/catalog/2005534.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 12, folder 552"])(1862)[Anthony & Co, New York Stamped recto, "Photographic History. The War for the Union." "2512" etched into negative. Mounted verso, "War Views. Soldiers drawing water, Fredericksburgh, Va. No. 2512." Stereograph, yellow card]. https://collections.library.yale.edu/catalog/2005534.