Cite

[Valparaiso?] Photographic print, 9.6 x 20.8 cm.

MLA

Northwest Boundary Commission ($d (1857-1862)). [Valparaiso?] Photographic print, 9.6 x 20.8 cm.. Box 3, folder 36. n.d.. https://collections.library.yale.edu/catalog/17355816.

APA, 6th edition

Northwest Boundary Commission ($d (1857-1862)). (["Box 3, folder 36"])(n.d.)[[Valparaiso?] Photographic print, 9.6 x 20.8 cm.]. https://collections.library.yale.edu/catalog/17355816.