MLA

Northwest Boundary Commission ($d (1857-1862)). La Puerta de la Justicia, Alhambra. Grenada, Spain. Photographic print, 19.9 x 25.9 cm.. Box 5, folder 64. n.d.. https://collections.library.yale.edu/catalog/16386876.

APA, 6th edition

Northwest Boundary Commission ($d (1857-1862)). (["Box 5, folder 64"])(n.d.)[La Puerta de la Justicia, Alhambra. Grenada, Spain. Photographic print, 19.9 x 25.9 cm.]. https://collections.library.yale.edu/catalog/16386876.