Cite

[Photograph of an unidentified young man, seated]

MLA

Gutekunst, Frederick, 1831-1917. [Photograph of an unidentified young man, seated]. ca. 1862-1874. https://collections.library.yale.edu/catalog/2011016.

APA, 6th edition

Gutekunst, Frederick, 1831-1917. (ca. 1862-1874)[[Photograph of an unidentified young man, seated]]. https://collections.library.yale.edu/catalog/2011016.